International Phonetic Alphabet

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International Phonetic Alphabet
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{{Selfref|For an introductory guide on IPA symbols with audio, see (:Help:IPA). For the usage of the IPA on Wikipedia, see (:Help:IPA/Introduction) and (:Help:IPA/English).}}{{short description|Alphabetic system of phonetic notation}}{{Good article}}{{Use dmy dates|date=September 2018}}

{{SpecialCharsphonetics>phonetic symbols| fix = Help:Special characters| characters = phonetic symbols}}The International Phonetic Alphabet (IPA) is an alphabetic system of phonetic notation based primarily on the Latin alphabet. It was devised by the International Phonetic Association in the late 19th century as a standardized representation of the sounds of spoken language.International Phonetic Association (IPA), Handbook. The IPA is used by lexicographers, foreign language students and teachers, linguists, speech-language pathologists, singers, actors, constructed language creators and translators.BOOK, MacMahon, Michael K. C., Phonetic Notation, P. T. Daniels, W. Bright, The World's Writing Systems, 821–846, Oxford University Press, 1996, New York, 0-19-507993-0,weblink BOOK, Joan, Wall, International Phonetic Alphabet for Singers: A Manual for English and Foreign Language Diction, Pst, 1989, 1-877761-50-8, The IPA is designed to represent only those qualities of speech that are part of oral language: phones, phonemes, intonation and the separation of words and syllables. To represent additional qualities of speech, such as tooth gnashing, lisping, and sounds made with a cleft lip and cleft palate, an extended set of symbols, the extensions to the International Phonetic Alphabet, may be used.IPA symbols are composed of one or more elements of two basic types, letters and diacritics. For example, the sound of the English letter {{angbr|t}} may be transcribed in IPA with a single letter, {{IPA|[t]}}, or with a letter plus diacritics, {{IPA|[t̺ʰ]}}, depending on how precise one wishes to be.The inverted bridge under the {{angbr|t}} specifies it as apical (pronounced with the tip of the tongue), and the superscript h shows that it is aspirated (breathy). Both these qualities cause the English {{IPA|[t]}} to sound different from the French or Spanish {{IPA|[t]}}, which is a laminal (pronounced with the blade of the tongue) and unaspirated {{IPA|[t̻]}}. {{angbr IPA|t̺ʰ}} and {{angbr IPA|t̻}} are thus two different IPA symbols for two different, though similar, sounds. Often, slashes are used to signal broad or phonemic transcription; thus, {{IPA|/t/}} is less specific than, and could refer to, either {{IPA|[t̺ʰ]}} or {{IPA|[t]}}, depending on the context and language.Occasionally letters or diacritics are added, removed or modified by the International Phonetic Association. As of the most recent change in 2005,WEB,weblink IPA: Alphabet,, 20 November 2012, dead,weblink" title="">weblink 10 October 2012, there are 107 letters, 52 diacritics and four prosodic marks in the IPA. These are shown in the current IPA chart, also posted below in this article and at the website of the IPA.WEB, Full IPA Chart,weblink International Phonetic Association, 24 April 2017,


In 1886, a group of French and British language teachers, led by the French linguist Paul Passy, formed what would come to be known from 1897 onwards as the International Phonetic Association (in French, ).International Phonetic Association, Handbook, pp. 194–196 Their original alphabet was based on a spelling reform for English known as the Romic alphabet, but in order to make it usable for other languages, the values of the symbols were allowed to vary from language to language."Originally, the aim was to make available a set of phonetic symbols which would be given different articulatory values, if necessary, in different languages." (International Phonetic Association, Handbook, pp. 195–196) For example, the sound {{IPAblink|ʃ}} (the sh in shoe) was originally represented with the letter {{angbr|c}} in English, but with the digraph {{angbr|}} in French. However, in 1888, the alphabet was revised so as to be uniform across languages, thus providing the base for all future revisions.JOURNAL, Passy, Paul, 1888, Our revised alphabet, The Phonetic Teacher, 57–60, The idea of making the IPA was first suggested by Otto Jespersen in a letter to Paul Passy. It was developed by Alexander John Ellis, Henry Sweet, Daniel Jones, and Passy.IPA in the Encyclopædia BritannicaSince its creation, the IPA has undergone a number of revisions. After revisions and expansions from the 1890s to the 1940s, the IPA remained primarily unchanged until the Kiel Convention in 1989. A minor revision took place in 1993 with the addition of four letters for mid central vowels and the removal of letters for voiceless implosives.Pullum and Ladusaw, Phonetic Symbol Guide, pp. 152, 209 The alphabet was last revised in May 2005 with the addition of a letter for a labiodental flap.WEB, Nicolaidis, Katerina, Approval of New IPA Sound: The Labiodental Flap,weblink September 2005, International Phonetic Association, 17 September 2006, dead,weblink" title="">weblink 2 September 2006, Apart from the addition and removal of symbols, changes to the IPA have consisted largely of renaming symbols and categories and in modifying typefaces.Extensions to the International Phonetic Alphabet for speech pathology were created in 1990 and officially adopted by the International Clinical Phonetics and Linguistics Association in 1994.International Phonetic Association, Handbook, p. 186


(File:IPA chart 2018.pdf|thumb|upright=1.5|The official chart of the IPA, revised to 2018)The general principle of the IPA is to provide one letter for each distinctive sound (speech segment), although this practice is not followed if the sound itself is complex."From its earliest days [...] the International Phonetic Association has aimed to provide 'a separate sign for each distinctive sound; that is, for each sound which, being used instead of another, in the same language, can change the meaning of a word'." (International Phonetic Association, Handbook, p. 27) This means that:
  • It does not normally use combinations of letters to represent single sounds, the way English does with {{angbr|sh}}, {{angbr|th}} and {{angbr|ng}}, or single letters to represent multiple sounds the way {{angbr|x}} represents {{IPA|/ks/}} or {{IPA|/É¡z/}} in English.
  • There are no letters that have context-dependent sound values, as do "hard" and "soft" {{angbr|c}} or {{angbr|g}} in several European languages.
  • The IPA does not usually have separate letters for two sounds if no known language makes a distinction between them, a property known as "selectiveness".
For instance, flaps and taps are two different kinds of articulation, but since no language has (yet) been found to make a distinction between, say, an alveolar flap and an alveolar tap, the IPA does not provide such sounds with dedicated letters. Instead, it provides a single letter (in this case, {{IPA|[ɾ]}}) for both. Strictly speaking, this makes the IPA a partially phonemic alphabet, not a purely phonetic one.Among the symbols of the IPA, 107 letters represent consonants and vowels, 31 diacritics are used to modify these, and 19 additional signs indicate suprasegmental qualities such as length, tone, stress, and intonation.There are five basic tone diacritics and five basic tone letters, both sets of which are compounded for contour tones.
These are organized into a chart; the chart displayed here is the
official chart as posted at the website of the IPA.

Letter forms

The letters chosen for the IPA are meant to harmonize with the Latin alphabet."The non-roman letters of the International Phonetic Alphabet have been designed as far as possible to harmonize well with the roman letters. The Association does not recognize makeshift letters; It recognizes only letters which have been carefully cut so as to be in harmony with the other letters." (IPA 1949)
For this reason, most letters are either Latin or Greek, or modifications thereof. Some letters are neither: for example, the letter denoting the glottal stop, {{angbr IPA|ʔ}}, has the form of a dotless question mark, and derives originally from an apostrophe. A few letters, such as that of the voiced pharyngeal fricative, {{angbr IPA|ʕ}}, were inspired by other writing systems (in this case, the Arabic letter {{rtl-lang|ar|ﻉ}} {{transl|ar|ʿayn}}).
Despite its preference for harmonizing with the Latin script, the International Phonetic Association has occasionally admitted other letters. For example, before 1989, the IPA letters for click consonants were {{angbr IPA|ʘ}}, {{angbr IPA|ʇ}}, {{angbr IPA|Ê—}}, and {{angbr IPA|Ê–}}, all of which were derived either from existing IPA letters, or from Latin and Greek letters. However, except for {{angbr IPA|ʘ}}, none of these letters were widely used among Khoisanists or Bantuists, and as a result they were replaced by the more widespread symbols {{angbr IPA|ʘ}}, {{angbr IPA|Ç€}}, {{angbr IPA|ǃ}}, {{angbr IPA|Ç‚}}, and {{angbr IPA|ǁ}} at the IPA Kiel Convention in 1989.Laver, Principles of Phonetics, pp. 174–175Although the IPA diacritics are fully featural, there is little systemicity in the letter forms. A retroflex articulation is consistently indicated with a right-swinging tail, as in {{angbr IPA|É– Ê‚ ɳ}}, and implosion by a top hook, {{angbr IPA|É“ É— É }}, but other pseudo-featural elements are due to haphazard derivation and coincidence. For example, all nasal consonants but uvular {{angbr IPA|É´}} are based on the form {{angbr IPA|n}}: {{angbr IPA|m ɱ n ɳ ɲ Å‹}}. However, the similarity between {{angbr IPA|m}} and {{angbr IPA|n}} is a historical accident; {{angbr IPA|ɲ}} and {{angbr IPA|Å‹}} are derived from ligatures of gn and ng, and {{angbr IPA|ɱ}} is an ad hoc imitation of {{angbr IPA|Å‹}}.Some of the new letters were ordinary Latin letters turned 180 degrees, such as {{IPA|ɐ É” É™ ÉŸ É¥ ɯ ɹ ʇ ÊŒ ʍ ÊŽ}} (turned {{IPA|a c e f h m r t v w y}}). This was easily done in the era of mechanical typesetting, and had the advantage of not requiring the casting of special type for IPA symbols.

{{vanchor|Capital letters}}

Full capital letters are not used as IPA symbols. They are, however, often used for archiphonemes and for natural classes of phonemes (that is, as wildcards). Such usage is not part of the IPA or even standardized, and may be ambiguous between authors, but it is commonly used in conjunction with the IPA. (The extIPA chart, for example, uses wildcards in its illustrations.) Capital letters are also basic to the Voice Quality Symbols sometimes used in conjunction with the IPA.As wildcards, {{angbr IPA|C}} for {consonant} and {{angbr IPA|V}} for {vowel} are ubiquitous. Other common capital-letter symbols are {{angbr IPA|T}} for {tone/accent} (tonicity), {{angbr IPA|N}} for {nasal}, {{angbr IPA|P}} for {plosive}, {{angbr IPA|F}} for {fricative}, {{angbr IPA|S}} for {sibilant}, {{angbr IPA|G}} for {glide/approximant}, {{angbr IPA|L}} for {liquid}, {{angbr IPA|R}} for {rhotic} or {resonant} (sonorant), {{angbr IPA|Ʞ}} for {click}, {{angbr IPA|A, E, O, Ʉ}} for {open, front, back, close vowel} and {{angbr IPA|B, D, J (or Ɉ), K, Q, Φ, H}} for {labial}, {alveolar}, {post-alveolar/palatal}, {velar}, {uvular}, {pharyngeal} and {glottal}, respectively, and {{angbr IPA|X}} for anything. For example, the possible syllable shapes of Mandarin can be abstracted as ranging from {{IPA|/V/}} (an atonic vowel) to {{IPA|/CGVNᵀ/}} (a consonant-glide-vowel-nasal syllable with tone). The letters can be modified with IPA diacritics, for example {{angbr IPA|Cʼ}} for {ejective}, {{angbr IPA|Ƈ}} for {implosive}, {{angbr IPA|N͡C}} or {{angbr IPA|ᴺC}} for {prenasalized consonant}, {{angbr IPA|Ṽ}} for {nasal vowel}, {{angbr IPA|S̬}} for {voiced sibilant}, {{angbr IPA|N̥}} for {voiceless nasal}, {{angbr IPA|P͡F}} or {{angbr IPA|PF}} for {affricate}, {{angbr IPA|Cʲ}} for {palatalized consonant} and {{angbr IPA|D̪}} for {dental consonant}. In speech pathology, capital letters represent indeterminate sounds, and may be superscripted to indicate they are weakly articulated: e.g. {{IPA|[ᴰ]}} is a weak indeterminate alveolar, {{IPA|[ᴷ]}} a weak indeterminate velar.Perry (2000) Phonological/phonetic assessment of an English-speaking adult with dysarthriaTypical examples of archiphonemic use of capital letters are {{angbr|I}} for the Turkish harmonic vowel set {{IPA|{i y ɯ u}}}For other Turkic languages, {{angbr|I}} may be restricted to {{IPA|{ɯ i}}} (that is, to ı i), {{angbr|U}} to u ü, {{angbr|A}} to a e/ä, etc. {{angbr|D}} for the conflated flapped middle consonant of American English writer and rider, and {{angbr|N}} for the homorganic syllable-coda nasal of languages such as Spanish (essentially equivalent to the wild-card usage of the letter).{{angbr|V}}, {{angbr|F}} and {{angbr|C}} have different meanings as Voice Quality Symbols, where they stand for "voice" (generally meaning secondary articulation rather than phonetic voicing), "falsetto" and "creak". They may take diacritics that indicate what kind of voice quality an utterance has, and may be used to extract a suprasegmental feature that occurs on all susceptible segments in a stretch of IPA. For instance, the transcription of Scottish Gaelic {{IPA|[kʷʰuˣʷt̪ʷs̟ʷ]}} 'cat' and {{IPA|[kʷʰʉˣʷt͜ʃʷ]}} 'cats' (Islay dialect) can be made more economical by extracting the suprasegmental labialization of the words: {{IPA|Vʷ[kʰuˣt̪s̟]}} and {{IPA|Vʷ[kʰʉˣt͜ʃ]}}.Laver (1994) Principles of Phonetics, p. 374.

Typography and iconicity

The International Phonetic Alphabet is based on the Latin alphabet, using as few non-Latin forms as possible. The Association created the IPA so that the sound values of most consonant letters taken from the Latin alphabet would correspond to "international usage". Hence, the letters {{angbr IPA|b}}, {{angbr IPA|d}}, {{angbr IPA|f}}, (hard) {{angbr IPA|ɡ}}, (non-silent) {{angbr IPA|h}}, (unaspirated) {{angbr IPA|k}}, {{angbr IPA|l}}, {{angbr IPA|m}}, {{angbr IPA|n}}, (unaspirated) {{angbr IPA|p}}, (voiceless) {{angbr IPA|s}}, (unaspirated) {{angbr IPA|t}}, {{angbr IPA|v}}, {{angbr IPA|w}}, and {{angbr IPA|z}} have the values used in English; and the vowel letters from the Latin alphabet ({{angbr IPA|a}}, {{angbr IPA|e}}, {{angbr IPA|i}}, {{angbr IPA|o}}, {{angbr IPA|u}}) correspond to the (long) sound values of Latin: {{IPA|[i]}} is like the vowel in mach{{strong|i}}ne, {{IPA|[u]}} is as in r{{strong|u}}le, etc. Other letters may differ from English, but are used with these values in other European languages, such as {{angbr IPA|j}}, {{angbr IPA|r}}, and {{angbr IPA|y}}.This inventory was extended by using small-capital and cursive forms, diacritics and rotation. There are also several symbols derived or taken from the Greek alphabet, though the sound values may differ. For example, {{angbr IPA|ʋ}} is a vowel in Greek, but an only indirectly related consonant in the IPA. For most of these, subtly different glyph shapes have been devised for the IPA, namely {{angbr IPA|ɑ}}, {{angbr IPA|ꞵ}}, {{angbr IPA|ɣ}}, {{angbr IPA|ɛ}}, {{angbr IPA|ɸ}}, {{angbr IPA|ꭓ}}, and {{angbr IPA|ʋ}}, which are encoded in Unicode separately from their parent Greek letters, though one of them – {{angbr IPA|θ}} – is not, while Greek {{angbr IPA|β}} and {{angbr IPA|χ}} are generally used for {{angbr IPA|ꞵ}} and {{angbr IPA|ꭓ}}.Cf. the notes at the Unicode IPA EXTENSIONS code chart as well as blogs by Michael Everson and John Wells here and here.The sound values of modified Latin letters can often be derived from those of the original letters.{{Citation | quote = The new letters should be suggestive of the sounds they represent, by their resemblance to the old ones. | publisher = International Phonetic Association | title = Handbook | page = 196}}. For example, letters with a rightward-facing hook at the bottom represent retroflex consonants; and small capital letters usually represent uvular consonants. Apart from the fact that certain kinds of modification to the shape of a letter generally correspond to certain kinds of modification to the sound represented, there is no way to deduce the sound represented by a symbol from its shape (as for example in Visible Speech) nor even any systematic relation between signs and the sounds they represent (as in Hangul).Beyond the letters themselves, there are a variety of secondary symbols which aid in transcription. Diacritic marks can be combined with IPA letters to transcribe modified phonetic values or secondary articulations. There are also special symbols for suprasegmental features such as stress and tone that are often employed.

Types of transcription

There are two principal types of brackets used to set off IPA transcriptions:
  • [square brackets] are used with phonetic notations, possibly including details of the pronunciation that may not be used for distinguishing words in the language being transcribed, but which the author nonetheless wishes to document.
  • /slashes/ are used for phonemic notations, which note only features that are distinctive in the language, without any extraneous detail.
For example, while the {{IPA|/p/}} sounds of pin and spin are pronounced slightly differently in English (and this difference would be meaningful in some languages), the difference is not meaningful in English. Thus phonemically the words are {{IPA|/pɪn/}} and {{IPA|/spɪn/}}, with the same {{IPA|/p/}} phoneme. However, to capture the difference between them (the allophones of {{IPA|/p/}}), they can be transcribed phonetically as {{IPA|[pʰɪn]}} and {{IPA|[spɪn]}}.Other conventions are less commonly seen:
  • Double slashes..., pipes |...|, double pipes ||...||, or braces {...} may be used around a word to denote its underlying structure, more abstract even than that of phonemes. {{selfref|See morphophonology for examples.|inline}}
  • Double square brackets {{IPA|⟦...⟧}} are used for extra-precise transcription. They indicate that a letter has its cardinal IPA value. For example, {{IPA|⟦a⟧}} is an open front vowel, rather than the perhaps slightly different value (such as open central) that "{{IPA|[a]}}" may be used to transcribe in a particular language. Thus two vowels transcribed for easy legibility as {{angbr IPA|[e]}} and {{angbr IPA|[É›]}} may be clarified as actually being {{IPA|⟦e̝⟧}} and {{IPA|⟦e⟧}}; {{angbr IPA|[ð]}} may be more precisely {{IPA|⟦ð̠̞ˠ⟧}}.Basbøll (2005) The Phonology of Danish pp. 45, 59
  • Angle brackets are used to clarify that the letters represent the original orthography of the language, or sometimes an exact transliteration of a non-Latin script, not the IPA; or, within the IPA, that the letters themselves are indicated, not the sound values that they carry. For example, {{angbr IPA|pin}} and {{angbr IPA|spin}} would be seen for those words, which do not contain the ee sound {{IPA|[i]}} of the IPA letter {{angbr IPA|i}}. Italics are perhaps more commonly used for this purpose when full words are being written (as pin, spin above), but may not be sufficiently clear for individual letters and digraphs.Proper angle brackets used in transcription are the mathematical symbols ⟨...⟩ (U+27E8 and U+27E9). These may not be supported by older fonts. Chevrons ‹...› (U+2039, U+203A) are sometimes substituted, as are the less-than and greater-than signs (U+003C, U+003E) found on ASCII keyboards.
  • {Braces} are used for prosodic notation. See Extensions to the International Phonetic Alphabet for examples in that system.
  • (Parentheses) are used for indistinguishable utterances. They are also seen for silent articulation (mouthing), where the expected phonetic transcription is derived from lip-reading, and with periods to indicate silent pauses, for example (...).
  • Double parentheses indicate obscured or unintelligible sound, as in ((2 syll.)) or ⸨2 syll.⸩, two audible but unidentifiable syllables.

Cursive forms

IPA letters have cursive forms designed for use in manuscripts and when taking field notes.

Letter g

(File:LowercaseG.svg|right|thumb|200|Typographic variants include a double-story and single-story g.)In the early stages of the alphabet, the typographic variants of g, opentail {{angbr IPA|É¡}} ((File:Opentail g.svg|8px)) and looptail {{angbr IPA|g}} ((File:Looptail g.svg|8px)), represented different values, but are now regarded as equivalents. Opentail {{angbr IPA|É¡}} has always represented a voiced velar plosive, while {{angbr|(File:Looptail g.svg|8px)}} was distinguished from {{angbr IPA|É¡}} and represented a voiced velar fricative from 1895 to 1900.JOURNAL, Association phonétique internationale, January 1895, vÉ”t syr l alfabÉ›, Votes sur l'alphabet, Le Maître Phonétique, 16–17, JOURNAL, Association phonétique internationale, February–March 1900a, akt É”fisjÉ›l, Acte officiel, Le Maître Phonétique, 20, Subsequently, {{angbr IPA|Ç¥}} represented the fricative, until 1931 when it was replaced again by {{angbr IPA|É£}}.JOURNAL, Association phonétique internationale, July–September 1931, desizjɔ̃ ofisjÉ›l, Décisions officielles, Le Maître Phonétique, 35, 40–42, In 1948, the Council of the Association recognized {{angbr IPA|É¡}} and {{angbr|(File:Looptail g.svg|8px)}} as typographic equivalents,JOURNAL, Jones, Daniel, July–December 1948, desizjɔ̃ ofisjÉ›l, Décisions officielles, Le Maître Phonétique, 90, 28–30, and this decision was reaffirmed in 1993.JOURNAL, International Phonetic Association, 1993, Council actions on revisions of the IPA, Journal of the International Phonetic Association, 23, 1, 32–34, 10.1017/S002510030000476X, While the 1949 Principles of the International Phonetic Association recommended the use of {{angbr|(File:Looptail g.svg|8px)}} for a velar plosive and {{angbr IPA|É¡}} for an advanced one for languages where it is preferable to distinguish the two, such as Russian,BOOK, International Phonetic Association, 1949, The Principles of the International Phonetic Association, Department of Phonetics, University College, London, Supplement to Le Maître Phonétique 91, January–June 1949, . Reprinted in Journal of the International Phonetic Association 40 (3), December 2010, pp. 299–358, {{doi, 10.1017/S0025100311000089, .}} this practice never caught on.WEB, Wells, John C., 6 November 2006,weblink Scenes from IPA history, John Wells's phonetic blog, Department of Phonetics and Linguistics, University College London, The 1999 Handbook of the International Phonetic Association, the successor to the Principles, abandoned the recommendation and acknowledged both shapes as acceptable variants.{{sfnp|International Phonetic Association|1999|p=19}}

{{anchor|chart}}Modifying the IPA chart

File:Extended IPA chart 2005.png|thumb|right|300px|The authors of textbooks or similar publications often create revised versions of the IPA chart to express their own preferences or needs. The image displays one such version. Only the black symbols are part of the IPA; common additional symbols are in grey. Some of these are in the extIPAextIPAThe International Phonetic Alphabet is occasionally modified by the Association. After each modification, the Association provides an updated simplified presentation of the alphabet in the form of a chart. (See History of the IPA.) Not all aspects of the alphabet can be accommodated in a chart of the size published by the IPA. The alveolo-palatal and epiglottal consonants, for example, are not included in the consonant chart for reasons of space rather than of theory (two additional columns would be required, one between the retroflex and palatal columns and the other between the pharyngeal and glottal columns), and the lateral flap would require an additional row for that single consonant, so they are listed instead under the catchall block of "other symbols".John Esling (2010) "Phonetic Notation", in Hardcastle, Laver & Gibbon (eds) The Handbook of Phonetic Sciences, 2nd ed., pp. 688, 693. The indefinitely large number of tone letters would make a full accounting impractical even on a larger page, and only a few examples are shown.The procedure for modifying the alphabet or the chart is to propose the change in the Journal of the IPA. (See, for example, August 2008 on an open central unrounded vowel and August 2011 on central approximants.)JOURNAL,weblink Martin J. Ball, Joan Rahilly, The symbolization of central approximants in the IPA, Journal of the International Phonetic Association, 41, 2, 231–237, Cambridge Journals Online, August 2011, 14 March 2018, Reactions to the proposal may be published in the same or subsequent issues of the Journal (as in August 2009 on the open central vowel).WEB,weblink Cambridge Journals Online – Journal of the International Phonetic Association Vol. 39 Iss. 02,, 23 October 2012, 20 November 2012, A formal proposal is then put to the Council of the IPAWEB,weblink IPA: About us,, 20 November 2012, dead,weblink" title="">weblink 10 October 2012, – which is elected by the membershipWEB,weblink IPA: Statutes,, 20 November 2012, dead,weblink" title="">weblink 10 October 2012, – for further discussion and a formal vote.WEB,weblink IPA: News,, 20 November 2012,weblink" title="">weblink 11 November 2012, dead, WEB,weblink IPA: News,, 20 November 2012, dead,weblink" title="">weblink 11 November 2012, Only changes to the alphabet or chart that have been approved by the Council can be considered part of the official IPA. Nonetheless, many users of the alphabet, including the leadership of the Association itself, make personal changes or additions in their own practice, either for convenience in working on a particular language (see "Illustrations of the IPA" for individual languages in the Handbook, which for example may use {{angbr|c}} for {{IPA|[tʃ]}}),IPA Handbook (1999) or because they object to some aspect of the official version.


{{further|Phonetic transcription}}Although the IPA offers over 160 symbols for transcribing speech, only a relatively small subset of these will be used to transcribe any one language. It is possible to transcribe speech with various levels of precision. A precise phonetic transcription, in which sounds are described in a great deal of detail, is known as a narrow transcription. A coarser transcription which ignores some of this detail is called a broad transcription. Both are relative terms, and both are generally enclosed in square brackets. Broad phonetic transcriptions may restrict themselves to easily heard details, or only to details that are relevant to the discussion at hand, and may differ little if at all from phonemic transcriptions, but they make no theoretical claim that all the distinctions transcribed are necessarily meaningful in the language.File:RPGA international.svg|200px|thumb|Phonetic transcriptions of the word international in two English dialectEnglish dialectFor example, the English word little may be transcribed broadly using the IPA as {{IPA|/ˈlɪtəl/}}, and this broad (imprecise) transcription is a more or less accurate description of many pronunciations. A narrower transcription may focus on individual or dialectical details: {{IPA|[ˈɫɪɾɫ]}} in General American, {{IPA|[ˈlɪʔo]}} in Cockney, or {{IPA|[ˈɫɪːɫ]}} in Southern US English.It is customary to use simpler letters, without many diacritics, in phonemic transcriptions. The choice of IPA letters may reflect the theoretical claims of the author, or merely be a convenience for typesetting. For instance, in English, either the vowel of pick or the vowel of peak may be transcribed as {{IPA|/i/}} (for the pairs {{IPA|/pik, piːk/}} or {{IPA|/pɪk, pik/}}), and neither is identical to the vowel of the French word which is also generally transcribed {{IPA|/i/}}. That is, letters between slashes do not have absolute values, something true of broader phonetic approximations as well. A narrow transcription may, however, be used to distinguish them: {{IPA|[pʰɪk]}}, {{IPA|[pʰiːk]}}, {{IPA|[pikʲ]}}.


Although IPA is popular for transcription by linguists, American linguists often alternate use of the IPA with Americanist phonetic notation or use the IPA together with some nonstandard symbols, for reasons including reducing the error rate on reading handwritten transcriptions or avoiding perceived awkwardness of IPA in some situations. The exact practice may vary somewhat between languages and even individual researchers, so authors are generally encouraged to include a chart or other explanation of their choices.WEB,weblink Why I Don't Love the International Phonetic Alphabet, Sally Thomason, 2 January 2008, Language Log,

Language study

File:English-2nd grade-Vereshchagina-Russian-textbook-page 39.png|thumb|right|300px|A page from an English language textbook used in Russia. The IPA is used to teach the different pronunciations of the digraph {{angbr|th}}digraph {{angbr|th}}Some language study programs use the IPA to teach pronunciation. For example, in Russia (and earlier in the Soviet Union) and mainland China, textbooks for childrenFor example, the English school textbooks by I. N. Vereshagina, K. A. Bondarenko and T. A. Pritykina. and adultsFor example, "Le Français à la portée de tous" by K. K. Parchevsky and E. B. Roisenblit (1995) and "English Through Eye and Ear" by L.V. Bankevich (1975). for studying English and French consistently use the IPA. English teachers and textbooks in Taiwan tend to use the Kenyon and Knott system, a slight typographical variant of the IPA first used in the 1944 Pronouncing Dictionary of American English.



Many British dictionaries, including the Oxford English Dictionary and some learner's dictionaries such as the Oxford Advanced Learner's Dictionary and the Cambridge Advanced Learner's Dictionary, now use the International Phonetic Alphabet to represent the pronunciation of words.WEB,weblink Phonetics, 2002, Cambridge Dictionaries Online, 11 March 2007, However, most American (and some British) volumes use one of a variety of pronunciation respelling systems, intended to be more comfortable for readers of English. For example, the respelling systems in many American dictionaries (such as Merriam-Webster) use {{angbr|y}} for IPA {{IPA|[j]}} and {{angbr|sh}} for IPA {{IPA|[ʃ]}}, reflecting common representations of those sounds in written English,WEB,weblink Merriam-Webster Online Pronunciation Symbols, 4 June 2007,weblink" title="">weblink 1 June 2007, dead, BOOK, Michael, Agnes, Webster's New World College Dictionary, 1999, Macmillan, New York, 0-02-863119-6, xxiii, true,weblink Pronunciation respelling for English has detailed comparisons. using only letters of the English Roman alphabet and variations of them. (In IPA, {{IPA|[y]}} represents the sound of the French {{angbr|u}} (as in ), and {{IPA|[sh]}} represents the pair of sounds in gra{{strong|ssh}}opper.)

Other languages

The IPA is also not universal among dictionaries in languages other than English. Monolingual dictionaries of languages with generally phonemic orthographies generally do not bother with indicating the pronunciation of most words, and tend to use respelling systems for words with unexpected pronunciations. Dictionaries produced in Israel use the IPA rarely and sometimes use the Hebrew alphabet for transcription of foreign words. Monolingual Hebrew dictionaries use pronunciation respelling for words with unusual spelling; for example, the Even-Shoshan Dictionary respells {{Hebrew|תָּכְנִית}} as {{Hebrew|תּוֹכְנִית}} because this word uses kamatz katan. Bilingual dictionaries that translate from foreign languages into Russian usually employ the IPA, but monolingual Russian dictionaries occasionally use pronunciation respelling for foreign words; for example, Sergey Ozhegov's dictionary adds нэ́ in brackets for the French word пенсне () to indicate that the final е does not iotate the preceding н.The IPA is more common in bilingual dictionaries, but there are exceptions here too. Mass-market bilingual Czech dictionaries, for instance, tend to use the IPA only for sounds not found in the Czech language.{{cs icon}} BOOK, Fronek, J., Velký anglicko-český slovník, 2006, Leda, Praha, Czech, 80-7335-022-X, In accordance with long-established Czech lexicographical tradition, a modified version of the International Phonetic Alphabet (IPA) is adopted in which letters of the Czech alphabet are employed.,

Standard orthographies and case variants

IPA letters have been incorporated into the alphabets of various languages, notably via the Africa Alphabet in many sub-Saharan languages such as Hausa, Fula, Akan, Gbe languages, Manding languages, Lingala, etc. This has created the need for capital variants. For example, Kabiyè of northern Togo has Ɖ ɖ, Ŋ ŋ, Ɣ ɣ, Ɔ ɔ, Ɛ ɛ, Ʋ ʋ. These, and others, are supported by Unicode, but appear in Latin ranges other than the IPA extensions.In the IPA itself, however, only lower-case letters are used. The 1949 edition of the IPA handbook indicated that an asterisk {{angbr|*}} may be prefixed to indicate that a word is a proper name,Principles of the International Phonetic Association, 1949:17. but this convention was not included in the 1999 Handbook.

Classical singing

IPA has widespread use among classical singers during preparation as they are frequently required to sing in a variety of foreign languages, in addition to being taught by vocal coach in order to perfect the diction of their students and to globally improve tone quality and tuning.JOURNAL, Severens, Sara E., 2017, The Effects of the International Phonetic Alphabet in Singing,weblink en, Opera librettos are authoritatively transcribed in IPA, such as Nico Castel's volumesWEB,weblink Nico Castel's Complete Libretti Series, Castel Opera Arts, 29 September 2008, and Timothy Cheek's book Singing in Czech.BOOK,weblink Cheek, Timothy, Singing in Czech, 2001, 392, 978-0-8108-4003-4, The Scarecrow Press, Opera singers' ability to read IPA was used by the site Visual Thesaurus, which employed several opera singers "to make recordings for the 150,000 words and phrases in VT's lexical database ... for their vocal stamina, attention to the details of enunciation, and most of all, knowledge of IPA".WEB,weblink Operatic IPA and the Visual Thesaurus, Zimmer, Benjamin, Benjamin Zimmer, Language Log, University of Pennsylvania, 29 September 2009, 14 May 2008,


{{See also|International Phonetic Alphabet chart}}The International Phonetic Association organizes the letters of the IPA into three categories: pulmonic consonants, non-pulmonic consonants, and vowels."Segments can usefully be divided into two major categories, consonants and vowels." (International Phonetic Association, Handbook, p. 3)International Phonetic Association, Handbook, p. 6.Pulmonic consonant letters are arranged singly or in pairs of voiceless (tenuis) and voiced sounds, with these then grouped in columns from front (labial) sounds on the left to back (glottal) sounds on the right. In official publications by the IPA, two columns are omitted to save space, with the letters listed among 'other symbols',"for presentational convenience [...] because of [their] rarity and the small number of types of sounds which are found there." (IPA Handbook, p 18) and with the remaining consonants arranged in rows from full closure (occlusives: stops and nasals), to brief closure (vibrants: trills and taps), to partial closure (fricatives) and minimal closure (approximants), again with a row left out to save space. In the table below, a slightly different arrangement is made: All pulmonic consonants are included in the pulmonic-consonant table, and the vibrants and laterals are separated out so that the rows reflect the common lenition pathway of stop → fricative → approximant, as well as the fact that several letters pull double duty as both fricative and approximant; affricates may be created by joining stops and fricatives from adjacent cells. Shaded cells represent articulations that are judged to be impossible.Vowel letters are also grouped in pairs—of unrounded and rounded vowel sounds—with these pairs also arranged from front on the left to back on the right, and from maximal closure at top to minimal closure at bottom. No vowel letters are omitted from the chart, though in the past some of the mid central vowels were listed among the 'other symbols'.

IPA number

Each character is assigned a number, to prevent confusion between similar characters (such as {{IPA|ɵ}} and {{IPA|θ}}, {{IPA|ɤ}} and {{IPA|ɣ}}, or {{IPA|ʃ}} and {{IPA|ʄ}}) in such situations as the printing of manuscripts. The categories of sounds are assigned different ranges of numbers.A chart of IPA numbers can be found on the IPA website.IPA number chartThe numbers are assigned to sounds and to symbols, e.g. 304 is the open front unrounded vowel, 415 is the centralization diacritic. Together, they form a symbol that represents the open central unrounded vowel, {{IPA|[ä]}}.


Pulmonic consonants

{{see also|IPA pulmonic consonant chart with audio}}A pulmonic consonant is a consonant made by obstructing the glottis (the space between the vocal cords) or oral cavity (the mouth) and either simultaneously or subsequently letting out air from the lungs. Pulmonic consonants make up the majority of consonants in the IPA, as well as in human language. All consonants in the English language fall into this category.BOOK, Fromkin, Victoria, Victoria Fromkin, Rodman, Robert, An Introduction to Language, 1974, 1998, Harcourt Brace College Publishers, Fort Worth, TX, 6th, 0-03-018682-X,weblink The pulmonic consonant table, which includes most consonants, is arranged in rows that designate manner of articulation, meaning how the consonant is produced, and columns that designate place of articulation, meaning where in the vocal tract the consonant is produced. The main chart includes only consonants with a single place of articulation.{{IPA pulmonic consonants|caption=|affricates=no|notes=no}}Notes
  • In rows where some letters appear in pairs (the obstruents), the letter to the right represents a voiced consonant (except breathy-voiced {{IPA|[ɦ]}}). However, {{IPA|[Ê”]}} cannot be voiced, and the voicing of {{IPA|[Ê¡]}} is ambiguous.Ladefoged and Maddieson, 1996, Sounds of the World's Languages, §2.1. In the other rows (the sonorants), the single letter represents a voiced consonant.
  • Although there is a single letter for the coronal places of articulation for all consonants but fricatives, when dealing with a particular language, the letters may be treated as specifically dental, alveolar, or post-alveolar, as appropriate for that language, without diacritics.
  • Shaded areas indicate articulations judged to be impossible.
  • The letters {{IPA|[ʁ, Ê•, Ê¢]}} represent either voiced fricatives or approximants.
  • In many languages, such as English, {{IPA|[h]}} and {{IPA|[ɦ]}} are not actually glottal, fricatives, or approximants. Rather, they are bare phonation.Ladefoged and Maddieson, 1996, Sounds of the World's Languages, §9.3.
  • It is primarily the shape of the tongue rather than its position that distinguishes the fricatives {{IPA|[ʃ Ê’]}}, {{IPA|[É• Ê‘]}}, and {{IPA|[Ê‚ ʐ]}}.
  • Some listed phones are not known to exist as phonemes in any language.

Non-pulmonic consonants

Non-pulmonic consonants are sounds whose airflow is not dependent on the lungs. These include clicks (found in the Khoisan languages of Africa), implosives (found in languages such as Sindhi, Saraiki, Swahili and Vietnamese), and ejectives (found in many Amerindian and Caucasian languages).{{IPA non-pulmonic consonants|caption=|nonipa=no|affricates=no|notes=no}}Notes
  • Clicks have traditionally been described as double articulation of a forward 'release' and a rear 'accompaniment', with the click letters representing only the release. Therefore, all clicks require two letters for proper notation: {{angbr IPA|kÍ¡Ç‚, É¡Í¡Ç‚, Å‹Í¡Ç‚, qÍ¡Ç‚, ɢ͡ǂ, É´Í¡Ç‚}} etc., or {{angbr IPA|Ç‚Í¡k, Ç‚Í¡É¡, Ç‚Í¡Å‹, Ç‚Í¡q, Ç‚Í¡É¢, Ç‚Í¡É´}}. When the dorsal articulation is omitted, a {{IPA|[k]}} may usually be assumed. However, recent research disputes the concept of 'accompaniment' and the idea that clicks are doubly articulated, with the rear occlusion instead simply being part of the airstream mechanisms.Amanda L. Miller et al., weblink" title="">"Differences in airstream and posterior place of articulation among NÇ€uu lingual stops". Submitted to the Journal of the International Phonetic Association. Retrieved 27 May 2007. In these approaches, the click letter represents both articulations, with the different letters representing different click 'types', there is no velar-uvular distinction, and the accompanying letter represents the manner, phonation, or airstream contour of the click: {{angbr IPA|Ç‚, ᶢǂ, ᵑǂ}} etc.
  • Letters for the voiceless implosives {{angbr IPA|Æ¥, Æ­, ƈ, Æ™, Ê }} are no longer supported by the IPA, though they remain in Unicode. Instead, the IPA typically uses the voiced equivalent with a voiceless diacritic: {{angbr IPA|É“Ì¥, ʛ̥}}, etc..
  • Although not confirmed as contrastive in any language, and therefore not officially recognized by the IPA, a letter for the retroflex implosive, {{angbr IPA|ᶑ}}, has been assigned an IPA number.
  • The ejective diacritic often stands in for a superscript glottal stop in glottalized but pulmonic sonorants, such as {{IPA|[mË€]}}, {{IPA|[lË€]}}, {{IPA|[wË€]}}, {{IPA|[aË€]}}. These may also be transcribed as creaky {{IPA|[mÌ°]}}, {{IPA|[lÌ°]}}, {{IPA|[wÌ°]}}, {{IPA|[aÌ°]}}.


Affricates and co-articulated stops are represented by two letters joined by a tie bar, either above or below the letters.WEB, Phonetic analysis of Afrikaans, English, Xhosa and Zulu using South African speech databases,weblink, 20 November 2012, It is traditional to place the tie bar above the letters. It may be placed below to avoid overlap with ascenders or diacritic marks, or simply because it is more legible that way, as in Niesler, Louw, & Roux (2005), The six most common affricates are optionally represented by ligatures, though this is no longer official IPA usage, because a great number of ligatures would be required to represent all affricates this way. Alternatively, a superscript notation for a consonant release is sometimes used to transcribe affricates, for example {{IPA|tˢ}} for {{IPA|t͡s}}, paralleling {{IPA|kˣ}} ~ {{IPA|k͡x}}. The letters for the palatal plosives {{IPA|c}} and {{IPA|ɟ}} are often used as a convenience for {{IPA|t͡ʃ}} and {{IPA|d͡ʒ}} or similar affricates, even in official IPA publications, so they must be interpreted with care.{{IPA affricates|caption=|notes=no}}Note
  • On browsers that use Arial Unicode MS to display IPA characters, the following incorrectly formed sequences may look better due to a bug in that font: {{IPA|tsÍ¡}}, {{IPA|tʃ͡}}, {{IPA|tÉ•Í¡}}, {{IPA|dzÍ¡}}, {{IPA|dÊ’Í¡}}, {{IPA|dÊ‘Í¡}}, {{IPA|tɬ͡}}, {{IPA|dɮ͡}}.

Co-articulated consonants

Co-articulated consonants are sounds that involve two simultaneous places of articulation (are pronounced using two parts of the vocal tract). In English, the {{IPA|[w]}} in "went" is a coarticulated consonant, being pronounced by rounding the lips and raising the back of the tongue. Similar sounds are {{IPA|[ʍ]}} and {{IPA|[ɥ]}}.{{IPA co-articulated consonants|caption=|notes=no}}Notes
  • {{IPA|[ɧ]}} is described as a "simultaneous {{IPA|[ʃ]}} and {{IPA|[x]}}".BOOK, Ladefoged, Peter, Ian Maddieson, 1996, The sounds of the world's languages, Oxford, Blackwell, 329–330, 0-631-19815-6, However, this analysis is disputed. (See voiceless palatal-velar fricative for discussion.)
  • Multiple tie bars can be used: {{angbr IPA|aÍ¡bÍ¡c}} or {{angbr IPA|aÍœbÍœc}}. For instance, if a prenasalized stop is transcribed {{angbr IPA|mÍ¡b}}, and a doubly articulated stop {{angbr IPA|É¡Í¡b}}, then a prenasalized doubly articulated stop would be {{angbr IPA|Å‹Í¡mÍ¡É¡Í¡b}}
  • On browsers that use Arial Unicode MS to display IPA characters, the following incorrectly formed sequences may look better due to a bug in that font: {{IPA|kpÍ¡, É¡bÍ¡, Å‹mÍ¡}}.


{{see also|IPA vowel chart with audio}}File:Cardinal vowel tongue position-front.svg|thumb|200px|Tongue positions of cardinal front vowels, with highest point indicated. The position of the highest point is used to determine vowel height and backness.]]File:Cardinal vowels-Jones x-ray.jpg|thumb|200px|X-ray photosX-ray photosThe IPA defines a vowel as a sound which occurs at a syllable center.International Phonetic Association, Handbook, p. 10. Below is a chart depicting the vowels of the IPA. The IPA maps the vowels according to the position of the tongue.{{IPA vowels|caption=|notes=no}}The vertical axis of the chart is mapped by vowel height. Vowels pronounced with the tongue lowered are at the bottom, and vowels pronounced with the tongue raised are at the top. For example, {{IPA|[É‘]}} (the first vowel in father) is at the bottom because the tongue is lowered in this position. However, {{IPA|[i]}} (the vowel in "meet") is at the top because the sound is said with the tongue raised to the roof of the mouth.In a similar fashion, the horizontal axis of the chart is determined by vowel backness. Vowels with the tongue moved towards the front of the mouth (such as {{IPA|[É›]}}, the vowel in "met") are to the left in the chart, while those in which it is moved to the back (such as {{IPA|[ÊŒ]}}, the vowel in "but") are placed to the right in the chart.In places where vowels are paired, the right represents a rounded vowel (in which the lips are rounded) while the left is its unrounded counterpart.


Diphthongs are typically specified with a non-syllabic diacritic, as in {{angbr IPA|uɪ̯}} or {{angbr IPA|u̯ɪ}}, or with a superscript for the on- or off-glide, as in {{angbr IPA|uᶦ}} or {{angbr IPA|ᵘɪ}}. Sometimes a tie bar is used, especially if it is difficult to tell if the diphthong is characterized by an on-glide, an off-glide or is variable: {{angbr IPA|u͡ɪ}}.Notes
  • {{angbr IPA|a}} officially represents a front vowel, but there is little distinction between front and central open vowels, and {{angbr IPA|a}} is frequently used for an open central vowel. However, if disambiguation is required, the retraction diacritic or the centralized diacritic may be added to indicate an open central vowel, as in {{angbr IPA|aÌ }} or {{angbr IPA|ä}}.

Diacritics and prosodic notation {{anchor|Diacritics}}

Diacritics are used for phonetic detail. They are added to IPA letters to indicate a modification or specification of that letter's normal pronunciation.International Phonetic Association, Handbook, pp. 14–15.By being made superscript, any IPA letter may function as a diacritic, conferring elements of its articulation to the base letter. (See secondary articulation for a list of superscript IPA letters supported by Unicode.) Those superscript letters listed below are specifically provided for by the IPA; others include {{angbr IPA|tË¢}} ({{IPA|[t]}} with fricative release), {{angbr IPA|áµ—s}} ({{IPA|[s]}} with affricate onset), {{angbr IPA|ⁿd}} (prenasalized {{IPA|[d]}}), {{angbr IPA|bʱ}} ({{IPA|[b]}} with breathy voice), {{angbr IPA|mË€}} (glottalized {{IPA|[m]}}), {{angbr IPA|sᶴ}} ({{IPA|[s]}} with a flavor of {{IPA|[ʃ]}}), {{angbr IPA|oᶷ}} ({{IPA|[o]}} with diphthongization), {{angbr IPA|ɯᵝ}} (compressed {{IPA|[ɯ]}}). Superscript diacritics placed after a letter are ambiguous between simultaneous modification of the sound and phonetic detail at the end of the sound. For example, labialized {{angbr IPA|kÊ·}} may mean either simultaneous {{IPA|[k]}} and {{IPA|[w]}} or else {{IPA|[k]}} with a labialized release. Superscript diacritics placed before a letter, on the other hand, normally indicate a modification of the onset of the sound ({{angbr IPA|mË€}} glottalized {{IPA|[m]}}, {{angbr IPA|Ë€m}} {{IPA|[m]}} with a glottal onset).{|class="wikitable"! colspan=6|Syllabicity diacritics{{IPA|◌̩}}{{IPA|ɹ̩ nÌ©}}Syllabic{{IPA|◌̯}}{{IPA|ɪ̯ ʊ̯}}Non-syllabic{{IPA|◌̍}}{{IPA|ɻ̍ ŋ̍}}{{IPA|◌̑}}{{IPA|yÌ‘}}! colspan=6|Consonant-release diacritics{{IPA|◌ʰ}}{{IPA|tÊ°}}Aspiration (phonetics)>Aspirated{{ref labela|}}{{IPA|◌̚}}{{IPA|pÌš}}|No audible release{{IPA|◌ⁿ}}{{IPA|dⁿ}}|Nasal release{{IPA|◌ˡ}}{{IPA|dË¡}}Lateral release (phonetics)>Lateral release{{IPA|◌ᶿ}}{{IPA|tᶿ}}|Voiceless dental fricative release{{IPA|◌ˣ}}{{IPA|tË£}}|Voiceless velar fricative release{{IPA|◌ᵊ}}{{IPA|dᵊ}}|Mid central vowel release! colspan=6|Phonation diacritics{{IPA|◌̥}}{{IPA|nÌ¥ dÌ¥}}Voiceless{{IPA|◌̬}}{{IPA|s̬ t̬}}Voiced{{IPA|◌̊}}{{IPA|ɻ̊ Å‹ÌŠ}}{{IPA|◌̤}}{{IPA|b̤ a̤}}Breathy voiced{{ref label>Aspirated}}{{IPA|◌̰}}{{IPA|bÌ° aÌ°}}|Creaky voiced! colspan=6|Articulation diacritics{{IPA|◌̪}}{{IPA|t̪ d̪}}Dental{{IPA|◌̼}}{{IPA|t̼ d̼}}Linguolabial{{IPA|◌͆}}{{IPA|ɮ͆}}{{IPA|◌̺}}{{IPA|t̺ d̺}}Apical consonant>Apical{{IPA|◌̻}}{{IPA|tÌ» dÌ»}}Laminal consonant>Laminal{{IPA|◌̟}}{{IPA|uÌŸ tÌŸ}}Advanced{{IPA|◌̠}}{{IPA|iÌ  tÌ }}Retracted{{IPA|◌˖}}{{IPA|É¡Ë–}}{{IPA|◌˗}}{{IPA|yË— Å‹Ë—}}{{IPA|◌̈}}{{IPA|ë ä}}Relative articulation#Centralized vowels>Centralized{{IPA|◌̽}}{{IPA|e̽ ɯ̽}}|Mid-centralized{{IPA|◌̝}}{{IPA|e̝ r̝}}Raised{{IPA|◌̞}}{{IPA|eÌž β̞}}Lowered{{IPA|◌˔}}{{IPA|É­Ë”}}{{IPA|◌˕}}{{IPA|yË• ɣ˕}}! colspan=6|Co-articulation diacritics{{IPA|◌̹}}{{IPA|ɔ̹ x̹}}More rounded{{IPA|◌̜}}{{IPA|ɔ̜ xÊ·Ìœ}}Less Roundedness{{ref label>less rounded labialization}}{{IPA|◌͗}}{{IPA|yÍ— χ͗}}{{IPA|◌͑}}{{IPA|yÍ‘ χ͑ʷ}}{{IPA|◌ʷ}}{{IPA|tÊ· dÊ·}}Labialization>Labialized{{IPA|◌ʲ}}{{IPA|tʲ dʲ}}Palatalization (phonetics)>Palatalized{{IPA|◌ˠ}}{{IPA|tË  dË }}Velarization>Velarized{{IPA|◌̴}}{{IPA linkᵶ}}Velarized or pharyngealized{{IPA|◌ˤ}}{{IPA|tˤ aˤ}}Pharyngealization>Pharyngealized{{IPA|◌̘}}{{IPA|e̘ o̘}}Advanced and retracted tongue root>Advanced tongue root{{IPA|◌̙}}{{IPA|eÌ™ oÌ™}}Advanced and retracted tongue root>Retracted tongue root{{IPA|◌̃}}{{IPA|ẽ z̃}}Nasalization>Nasalized{{IPA|◌˞}}{{IPA|Éš ɝ}}R-colored vowel>RhoticityNotes
{{note|Aspirated|a}} With aspirated voiced consonants, the aspiration is usually also voiced (voiced aspirated – but see aspirated voiced). Many linguists prefer one of the diacritics dedicated to breathy voice over simple aspiration, such as {{angbr IPA|b̤}}. Some linguists restrict this diacritic to sonorants, and transcribe obstruents as {{angbr IPA|bʱ}}.
{{note|less rounded labialization|l}} Since {{angbr IPA|xʷ}} can mean that the {{IPA|[x]}} is labialized (rounded) throughout its articulation, and {{angbr IPA|x̜}} makes no sense ({{IPA|[x]}} is already completely unrounded), {{angbr IPA|x̜ʷ}} can only mean a less-labialized/rounded {{IPA|[xʷ]}}. However, readers might mistake {{angbr IPA|x̜ʷ}} for "{{IPA|[x̜]}}" with a labialized off-glide, or might wonder if the two diacritics cancel each other out. Placing the 'less rounded' diacritic under the labialization diacritic, {{angbr IPA|xʷ̜}}, makes it clear that it is the labialization that is 'less rounded' than its cardinal IPA value.
Subdiacritics (diacritics normally placed below a letter) may be moved above a letter to avoid conflict with a descender, as in voiceless {{angbr IPA|ŋ̊}}. The raising and lowering diacritics have optional forms {{angbr IPA|˔}}, {{angbr IPA|˕}} that avoid descenders.The state of the glottis can be finely transcribed with diacritics. A series of alveolar plosives ranging from an open to a closed glottis phonation are:{|class="wikitable"! Open glottis{{IPA|[t]}}|voiceless|{{IPA|[d̤]}}|breathy voice, also called murmured|{{IPA|[d̥]}}|slack voice!Sweet spot{{IPA|[d]}}|modal voice|{{IPA|[d̬]}}|stiff voice|{{IPA|[d̰]}}|creaky voice!Closed glottis{{IPA|[ʔ͡t]}}|glottal closureAdditional diacritics are provided by the Extensions to the IPA for speech pathology.


These symbols describe the features of a language above the level of individual consonants and vowels, such as prosody, tone, length, and stress, which often operate on syllables, words, or phrases: that is, elements such as the intensity, pitch, and gemination of the sounds of a language, as well as the rhythm and intonation of speech.International Phonetic Association, Handbook, p. 13. Although most of these symbols indicate distinctions that are phonemic at the word level, symbols also exist for intonation on a level greater than that of the word. Various ligatures of tone letters are used in the IPA Handbook despite not being found on the simplified official IPA chart.{| class="wikitable"! colspan=5|Length, stress, and rhythm {{IPA|ˈa}}stress (linguistics)>stress (symbol goes before stressed element) {{IPA|ËŒa}}| Secondary stress (symbol goes before stressed element) {{IPA|aː kː}} Length (phonetics) (Vowel length>long vowel orgeminate consonant) {{IPA|aË‘}}| Half-long {{IPA|ə̆}}| Extra-short {{IPA|a.a}}| Syllable break {{IPA|s‿a}} Linking (absence of a break)! colspan=5|Intonation {{IPA}}Prosodic unit>Minor (foot) break {{IPA|‖}}Prosodic unit>Major (intonation) break {{IPA|↗︎}} The global rise and fall arrows come before the affected syllable or prosodic unit, like stress and upstep/downstep. This contrasts with the Chao tone letters, which come after.Intonation (linguistics)>Global rise {{IPA|↘︎}} Intonation (linguistics)>Global fall! colspan=5|Tone diacritics and tone letters {{IPA {{IPA|eË¥}}| Extra high / top {{IPA|ꜛke}} Upstep {{IPA|ŋ́ é}} {{IPA|e˦}}| High {{IPA|Å‹ÌŒ Ä›}}| Rising (generic) {{IPA|Å‹Ì„ Ä“}} {{IPA|e˧}}| Mid|| {{IPA|Å‹Ì€ è}} {{IPA|e˨}}| Low {{IPA|Å‹Ì‚ ê}}| Falling (generic) {{IPA|ŋ̏ È…}} {{IPA|eË©}}| Extra low / bottom {{IPA|ꜜke}}Downstep (phonetics)>DownstepFiner distinctions of tone may be indicated by combining the tone diacritics and tone letters shown above, though not all IPA fonts support this. The four additional rising and falling tones supported by diacritics are high/mid rising {{IPA|ɔ᷄, ɔ˧˥}}, low rising {{IPA|ɔ᷅, ɔ˩˧}}, high falling {{IPA|ɔ᷇, ɔ˥˧}}, and low/mid falling {{IPA|ɔ᷆, ɔ˧˩}}. That is, tone diacritics only support contour tones across three levels (high, mid, low), despite supporting five levels for register tones. For other contour tones, tone letters must be used: {{IPA|ɔ˨˦, ɔ˥˦}}, etc. For more complex (peaking and dipping) tones, though it is theoretically possible to combine the three tone diacritics in any permutation, in practice only generic peaking {{IPA|ɔ᷈}} and dipping {{IPA|ɔ᷉}} combinations are used. For finer detail, tone letters are again required ({{IPA|ɔ˧˥˧, ɔ˩˨˩, ɔ˦˩˧, ɔ˨˩˦}}, etc.) The correspondence between tone diacritics and tone letters is therefore only approximate.A work-around for diacritics sometimes seen when a language has more than one rising or falling tone, and the author wishes to avoid the poorly legible diacritics {{IPA|ɔ᷄, ɔ᷅, ɔ᷇, ɔ᷆}} but does not wish to completely abandon the IPA, is to restrict generic rising {{IPA|ɔ̌}} and falling {{IPA|ɔ̂}} to the higher-pitched of the rising and falling tones, say {{IPA|ɔ˥˧}} and {{IPA|ɔ˧˥}}, and to use the old (retired) IPA subscript diacritics {{IPA|ɔ̗}} and {{IPA|ɔ̖}} for the lower-pitched rising and falling tones, say {{IPA|ɔ˩˧}} and {{IPA|ɔ˧˩}}. When a language has four or six level tones, the two mid tones are sometimes transcribed as high-mid {{IPA|ɔ̍}} (non-standard) and low-mid {{IPA|ɔ̄}}.A stress mark typically appears before the stressed syllable, and thus marks the syllable break as well as stress. Where the syllable onset is a geminate consonant, e.g. in Italian, the consonant is commonly split by the stress mark, which means that the length sign is not used for gemination. (Thus {{angbr IPA|avˈvÉ”lse}} not *{{angbr IPA|aˈvvÉ”lse}}, *{{angbr IPA|aˈvːɔlse}}, or *{{angbr IPA|avˈːɔlse}}.) However, occasionally the stress mark is placed immediately before the stressed vowel, after any syllable onset ({{angbr IPA|avvˈɔlse}} or {{angbr IPA|avːˈɔlse}}).Payne, E. M. (2005) "Phonetic variation in Italian consonant gemination", Journal of the International Phonetic Association, 35: 153–181. In such transcriptions, the stress mark does not function as a mark of the syllable boundary.Tone letters generally appear after each syllable, for a language with syllable tone ({{angbr IPA|a˧vɔ˥˩}}), or after the phonological word, for a language with word tone ({{angbr IPA|avɔ˧˥˩}}). However, in older versions of the IPA, ad hoc tone marks were placed before the syllable, the same position as used to mark stress, and this convention is still sometimes seen ({{angbr IPA|˧a˥˩vÉ”}}, {{angbr IPA|˧˥˩avÉ”}}).There are three boundary markers, {{angbr IPA|.}} for a syllable break, {{angbr IPA||}} for a minor prosodic break and {{angbr IPA|‖}} for a major prosodic break. The tags 'minor' and 'major' are intentionally ambiguous. Depending on need, 'minor' may vary from a foot break to a continuing–prosodic-unit boundary (equivalent to a comma), and while 'major' is often any intonation break, it may be restricted to a final–prosodic-unit boundary (equivalent to a period). Although not part of the IPA, the following boundary symbols are often used in conjunction with the IPA: {{angbr IPA|μ}} for a mora or mora boundary, {{angbr IPA|σ}} for a syllable or syllable boundary, {{angbr IPA|#}} for a word boundary, {{angbr IPA|$}} for a phrase or intermediate boundary and {{angbr IPA|%}} for a prosodic boundary. For example, C# is a word-final consonant, %V a post-pausa vowel, and T% an IU-final tone (edge tone).

Comparative degree

IPA diacritics may be doubled to indicate an extra degree of the feature indicated. This is a productive process, but apart from extra-high and extra-low tones {{angbr IPA|ə̋, ə̏}} being marked by doubled high- and low-tone diacritics, and the major prosodic break {{angbr IPA|‖}} being marked as a double minor break {{angbr IPA|{{!}}}}, it is not specifically regulated by the IPA. (Note that transcription marks are similar: double slashes indicate extra (morpho)-phonemic, double square brackets especially precise, and double parentheses especially unintelligible.) {{citation needed|date=April 2016}}For example, the stress mark may be doubled to indicate an extra degree of stress, such as prosodic stress in English.Bloomfield (1933) Language p. 91 An example in French, with a single stress mark for normal prosodic stress at the end of each prosodic unit (marked as a minor prosodic break), and a double stress mark for contrastive/emphatic stress: {{IPA|[ˈˈɑ̃ːˈtre {{!}} məˈsjø ‖ ˈˈvwala maˈdam ‖]}} . Passy, 1958, Conversations françaises en transcription phonétique. 2nd ed. Similarly, a doubled secondary stress mark {{angbr IPA|ˌˌ}} is commonly used for tertiary (extra-light) stress.Chao 1968, p. xxiii{{full citation needed|date=August 2019}}Length is commonly extended by repeating the length mark, as in English shhh! {{IPA|[ʃːːː]}}, or for "overlong" segments in Estonian:
  • vere {{IPA|/vere/}} 'blood []', veere {{IPA|/veːre/}} 'edge []', veere {{IPA|/veːːre/}} 'roll [imp. 2nd sg.]'
  • lina {{IPA|/linÉ‘/}} 'sheet', linna {{IPA|/linːɑ/}} 'town [gen. sg.]', linna {{IPA|/linːːɑ/}} 'town [ine. sg.]'
(Normally additional degrees of length are handled by the extra-short or half-long diacritics, but in the Estonian examples, the first two cases are analyzed as simply short and long.)Occasionally other diacritics are doubled:
  • Rhoticity in Badaga {{IPA|/be/}} "mouth", {{IPA|/beËž/}} "bangle", and {{IPA|/be˞˞/}} "crop".{{SOWL|314}}
  • Aspiration, for example contrasting Korean mild aspiration {{IPA|[kÊ°]}} with strong aspiration {{IPA|[kÊ°Ê°]}}.Sometimes the obsolete transcription {{angbr IPA|k{{okina}}}} (with a turned apostrophe) vs. {{angbr IPA|kÊ°}}is still seen.
  • Nasalization, as in Palantla Chinantec {{IPA|/ẽ/}} vs {{IPA|/eÍŒ/}}.Peter Ladefoged (1971) Preliminaries of Linguistic Phonetics, p. 35.
  • Weak vs strong ejectives, {{IPA|[kʼ]}}, {{IPA|[kʼʼ]}}.Fallon (2013) The Synchronic and Diachronic Phonology of Ejectives, p. 267
  • Especially lowered, e.g. {{IPA|[t̞̞]}} (or {{IPA|[t̞˕]}}, if the former symbol does not display properly) for {{IPA|/t/}} as a weak fricative in some pronunciations of register.Heselwood (2013) Phonetic Transcription in Theory and Practice, p. 233.
  • Especially retracted (at least on a vowel), e.g. {{IPA|[ø̠̠]}},E.g. in Laver (1994) Principles of Phonetics, pp. 559–560 though, depending on the font, on a consonant this could be confused with alveolar or alveolarized notation from the extIPA, though such an issue can be easily avoided by placing the second diacritic to the right of the letter ({{IPA|[ø̠˗]}}), rather than below the first diacritic.
  • The transcription of strident and harsh voice as extra-creaky {{IPA|/aá·½/}} may be motivated by the similarities of these phonations.

Obsolete and nonstandard symbols

The IPA once had parallel symbols from alternative proposals, but in most cases eventually settled on one for each sound. The rejected symbols are now considered obsolete. An example is the vowel letter {{angbr IPA|ɷ}}, rejected in favor of {{angbr IPA|ʊ}}. Letters for affricates and sounds with inherent secondary articulation have also been mostly rejected, with the idea that such features should be indicated with tie bars or diacritics: {{angbr IPA|ƍ}} for {{IPA|[zʷ]}} is one. In addition, the rare voiceless implosives, {{angbr IPA|ƥ ƭ ƈ ƙ ʠ}}, have been dropped and are now usually written {{angbr IPA|ɓ̥ ɗ̥ ʄ̊ ɠ̊ ʛ̥}}. A retired set of click letters, {{angbr IPA|ʇ, ʗ, ʖ}}, is still sometimes seen, as the official pipe letters {{angbr IPA|ǀ, ǃ, ǁ}} may cause problems with legibility, especially when used with brackets ([ ] or / /), the letter {{angbr IPA|l}}, or the prosodic marks {{angbr IPA||, ‖}} (for this reason, some publications which use the current IPA pipe letters disallow IPA brackets).WEB,weblink John Wells's phonetic blog,, 9 September 2009, 18 October 2010, Individual non-IPA letters may find their way into publications that otherwise use the standard IPA. This is especially common with:
  • Affricates, such as the Americanist barred lambda {{angbr IPA|Æ›}} for {{IPA|[t͜ɬ]}} or {{angbr IPA|č}} for {{IPA|[t͡ʃ]}}. Some authors find the tie bars displeasing but the lack of tie bars confusing (i.e. {{angbr IPA|č}} for {{IPA|/t͡ʃ/}} as distinct from {{IPA|/tʃ/}}), while others simply prefer to have one letter for each segmental phoneme in a language.
  • Digits for tonal phonemes that have conventional numbers in a local tradition, such as the four tones of Standard Chinese. This may be more convenient for comparison between languages and dialects than a phonetic transcription because tones often vary more than segmental phonemes do.
  • Digits for tone levels, though the lack of standardization can cause confusion (with e.g. "1" for high tone in some languages but for low tone in others).
  • Iconic extensions of standard IPA letters that can be readily understood, such as retroflex {{angbr|ᶑ }} and {{angbr|ꞎ}}.
In addition, there are typewriter substitutions for when IPA support is not available, such as capital {{angbr|I, E, U, O, A}} for {{IPA|[ɪ, ɛ, ʊ, ɔ, ɑ]}}.


(File:ExtIPA chart (2015).pdf|thumb|Chart of the Extensions to the International Phonetic Alphabet (extIPA), as of 2015)The "Extensions to the IPA", often abbreviated as "extIPA" and sometimes called "Extended IPA", are symbols whose original purpose was to accurately transcribe disordered speech. At the Kiel Convention in 1989, a group of linguists drew up the initial extensions,"At the 1989 Kiel Convention of the IPA, a sub-group was established to draw up recommendations for the transcription of disordered speech." ("Extensions to the IPA: An ExtIPA Chart" in International Phonetic Association, Handbook, p. 186.) which were based on the previous work of the PRDS (Phonetic Representation of Disordered Speech) Group in the early 1980s.BOOK, PRDS Group, The Phonetic Representation of Disordered Speech, 1983, London: The King's Fund, The extensions were first published in 1990, then modified, and published again in 1994 in the Journal of the International Phonetic Association, when they were officially adopted by the ICPLA."Extensions to the IPA: An ExtIPA Chart" in International Phonetic Association, Handbook, pp. 186–187. While the original purpose was to transcribe disordered speech, linguists have used the extensions to designate a number of unique sounds within standard communication, such as hushing, gnashing teeth, and smacking lips.In addition to the Extensions to the IPA there are the conventions of the Voice Quality Symbols, which besides the concept of voice quality in phonetics include a number of symbols for additional airstream mechanisms and secondary articulations.

Segments without letters

The blank cells on the IPA chart can be filled without too much difficulty if the need arises. Some ad hoc letters have appeared in the literature for the retroflex lateral flap (having the expected form of {{angbr IPA|ɺ}} plus a retroflex tail), the voiceless lateral fricatives (now provided for by the extIPA), the epiglottal trill (arguably covered by the epiglottal "fricatives" {{angbr IPA|Êœ Ê¢}}), the labiodental plosives ({{angbr IPA|ȹ ȸ}} in some old Bantuist texts) and the near-close central vowels ({{angbr IPA|áµ» ᵿ}} in some publications). Diacritics can duplicate some of those (such as {{angbr IPA|p̪ b̪}} for the labiodental plosives) and supply much of the remainder."Diacritics may also be employed to create symbols for phonemes, thus reducing the need to create new letter shapes." (International Phonetic Association, Handbook, p. 27) If a sound cannot be transcribed, an asterisk {{angbr|*}} may be used, either as a letter or as a diacritic (as in {{angbr|k*}} sometimes seen for the Korean "fortis" velar).


Representations of consonant sounds outside of the core set are created by adding diacritics to letters with similar sound values. The Spanish bilabial and dental approximants are commonly written as lowered fricatives, {{IPA|[β̞]}} and {{IPA|[ð̞]}} respectively.Dedicated letters have been proposed, such as {{angbr IPA|β}} and {{angbr IPA|ð}}. Ball, Rahilly & Lowry (2017) Phonetics for speech pathology, 3rd edition, Equinox, Sheffield. Similarly, voiced lateral fricatives would be written as raised lateral approximants, {{IPA|[É­Ë” ʎ̝ ʟ̝]}}. A few languages such as Banda have a bilabial flap as the preferred allophone of what is elsewhere a labiodental flap. It has been suggested that this be written with the labiodental flap letter and the advanced diacritic, {{IPA|[ⱱ̟]}}.Olson, Kenneth S.; & Hajek, John. (1999). The phonetic status of the labial flap. Journal of the International Phonetic Association, 29 (2), pp. 101–114.Similarly, a labiodental trill would be written {{IPA|[ʙ̪]}} (bilabial trill and the dental sign), and labiodental stops {{IPA|[p̪ b̪]}} rather than with the ad hoc letters sometimes found in the literature. Other taps can be written as extra-short plosives or laterals, e.g. {{IPA|[ɟ̆ ɢ̆ ʟ̆]}}, though in some cases the diacritic would need to be written below the letter. A retroflex trill can be written as a retracted {{IPA|[rÌ ]}}, just as non-subapical retroflex fricatives sometimes are. The remaining consonants, the uvular laterals ({{IPA|ÊŸÌ }} etc.) and the palatal trill, while not strictly impossible, are very difficult to pronounce and are unlikely to occur even as allophones in the world's languages.


The vowels are similarly manageable by using diacritics for raising, lowering, fronting, backing, centering, and mid-centering."The diacritics...can be used to modify the lip or tongue position implied by a vowel symbol." (International Phonetic Association, Handbook, p. 16) For example, the unrounded equivalent of {{IPA|[ÊŠ]}} can be transcribed as mid-centered {{IPA|[ɯ̽]}}, and the rounded equivalent of {{IPA|[æ]}} as raised {{IPA|[ɶ̝]}} or lowered {{IPA|[Å“Ìž]}} (though for those who conceive of vowel space as a triangle, simple {{IPA|[ɶ]}} already is the rounded equivalent of {{IPA|[æ]}}). True mid vowels are lowered {{IPA|[eÌž ø̞ ɘ̞ ɵ̞ ɤ̞ oÌž]}} or raised {{IPA|[ɛ̝ œ̝ ɜ̝ ɞ̝ ʌ̝ ɔ̝]}}, while centered {{IPA|[ɪ̈ ʊ̈]}} and {{IPA|[ä]}} (or, less commonly, {{IPA|[ɑ̈]}}) are near-close and open central vowels, respectively. The only known vowels that cannot be represented in this scheme are vowels with unexpected roundedness, which would require a dedicated diacritic, such as protruded {{angbr IPA|ʏʷ}} and compressed {{angbr IPA|uᵝ}} (or {{angbr IPA|ɪʷ}} and {{angbr IPA|ɯᵝ}}).

Symbol names

An IPA symbol is often distinguished from the sound it is intended to represent, since there is not necessarily a one-to-one correspondence between letter and sound in broad transcription, making articulatory descriptions such as 'mid front rounded vowel' or 'voiced velar stop' unreliable. While the Handbook of the International Phonetic Association states that no official names exist for its symbols, it admits the presence of one or two common names for each."...the International Phonetic Association has never officially approved a set of names..." (International Phonetic Association, Handbook, p. 31) The symbols also have nonce names in the Unicode standard. In some cases, the Unicode names and the IPA names do not agree. For example, IPA calls {{IPA|É›}} "epsilon", but Unicode calls it "small letter open E".The traditional names of the Latin and Greek letters are usually used for unmodified letters.For example, {{IPA|[p]}} is called "Lower-case P" and {{IPA|[χ]}} is "Chi." (International Phonetic Association, Handbook, p. 171)
Letters which are not directly derived from these alphabets, such as {{IPAblink|Ê•}}, may have a variety of names, sometimes based on the appearance of the symbol or on the sound that it represents. In Unicode, some of the letters of Greek origin have Latin forms for use in IPA; the others use the letters from the Greek section.
For diacritics, there are two methods of naming. For traditional diacritics, the IPA notes the name in a well known language; for example, {{strong|{{IPA|é}}}} is acute, based on the name of the diacritic in English and French. Non-traditional diacritics are often named after objects they resemble, so {{strong|{{IPA|d̪}}}} is called bridge.Geoffrey Pullum and William Ladusaw list a variety of names in use for IPA symbols, both current and retired, in addition to names of many other non-IPA phonetic symbols in their Phonetic Symbol Guide.


IPA typeface support is increasing, and is now included in several typefaces such as the Times New Roman versions that come with various recent computer operating systems. Diacritics are not always properly rendered, however.IPA typefaces that are freely available online include: Some commercial IPA-compatible typefaces include: These all include several ranges of characters in addition to the IPA. Modern Web browsers generally do not need any configuration to display these symbols, provided that a typeface capable of doing so is available to the operating system.

ASCII and keyboard transliterations

{{further|Comparison of ASCII encodings of the International Phonetic Alphabet}}Several systems have been developed that map the IPA symbols to ASCII characters. Notable systems include SAMPA and X-SAMPA. The usage of mapping systems in on-line text has to some extent been adopted in the context input methods, allowing convenient keying of IPA characters that would be otherwise unavailable on standard keyboard layouts.

Computer input using on-screen keyboard

Online IPA keyboard utilitiesOnline IPA keyboard utilities like IPA i-chart by the Association, IPA character picker 19 at GitHub,, and IPA Chart keyboard at GitHub. are available, and they cover the complete range of IPA symbols and diacritics. In April 2019, Google's Gboard for Android and iOS added an IPA keyboard to its platform.WEB,weblink Gboard updated with 63 new languages, including IPA (not the beer), 2019-04-18, Android Police, en-US, 2019-04-28, WEB,weblink Set up Gboard – Android – Gboard Help,, 2019-04-28,

See also

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Further reading

  • JOURNAL, Ball, Martin J., John H. Esling, B. Craig Dickson, 1995, The VoQS system for the transcription of voice quality, Journal of the International Phonetic Association, 25, 2, 71–80, 10.1017/S0025100300005181,
  • JOURNAL, Duckworth, M., G. Allen, M.J. Ball, December 1990, Extensions to the International Phonetic Alphabet for the transcription of atypical speech, Clinical Linguistics and Phonetics, 4, 4, 273–280, 10.3109/02699209008985489,
  • JOURNAL, Hill, Kenneth C., March 1988, Pullum, Geoffrey K., Ladusaw, William, Review of Phonetic Symbol Guide by G. K. Pullum & W. Ladusaw, Language, 64, 1, 143–144, 10.2307/414792, 414792,
  • JOURNAL, International Phonetic Association, 1989, Report on the 1989 Kiel convention, Journal of the International Phonetic Association, 19, 2, 67–80, 10.1017/s0025100300003868,
  • BOOK, International Phonetic Association, 1999, Handbook of the International Phonetic Association: A guide to the use of the International Phonetic Alphabet, Cambridge, Cambridge University Press, 0-521-65236-7, (hb); {{ISBN|0-521-63751-1}} (pb).
  • BOOK, Jones, Daniel, Daniel Jones (phonetician), English pronouncing dictionary, 1988, revised 14th, Dent, London, 18415701, 0-521-86230-2,weblink
  • JOURNAL, Ladefoged, Peter, Peter Ladefoged, September 1990, The revised International Phonetic Alphabet, Language, 66, 3, 550–552, 10.2307/414611, 414611,
  • JOURNAL, Ladefoged, Peter, Morris Hale, September 1988, Some major features of the International Phonetic Alphabet, Language, 64, 3, 577–582, 10.2307/414533, 414533,
  • BOOK, Laver, John, Principles of Phonetics, 1994, Cambridge University Press, New York, 0-521-45031-4, (hb); {{ISBN|0-521-45655-X}} (pb).
  • BOOK, Pullum, Geoffrey K., Geoffrey Pullum, William A. Ladusaw, Phonetic Symbol Guide, 1986, University of Chicago Press, Chicago, 0-226-68532-2,
  • BOOK, Skinner, Edith, Timothy Monich, Lilene Mansell, Speak with Distinction, New York, Applause Theatre Book Publishers, 1990, 1-55783-047-9,
  • BOOK, Fromkin, Victoria, Rodman, Robert, Hyams, Nina, An Introduction to Language, 2011, Wadsworth, Cenage Learning, Boston, 233–234, 9th, 1-4282-6392-6,

External links

{{Commons}}{{Commons category|IPA charts}} {{IPA navigation}}{{List of writing systems}}{{Authority control}}

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