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July 27, 2026Short & citedBlog
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Field Notes • Linguistics

International Phonetic Alphabet

The International Phonetic Alphabet (IPA) is a standardized system of symbols used to represent the sounds of spoken language.

Updated July 27, 20261 min readCited sources

The International Phonetic Alphabet (IPA) is a standardized system of symbols that represent the sounds of spoken language. Developed by the International Phonetic Association in the late 19th century, it is used in linguistics, dictionaries, and pronunciation guides worldwide.

What it is

The IPA is a phonetic notation system, not a writing system for everyday use. It assigns a unique symbol to each distinct speech sound, reducing confusion caused by inconsistent spelling across languages. The core inventory includes 107 consonant and vowel symbols, plus diacritics and suprasegmentals for stress, tone, and syllable boundaries.

Why it matters

The IPA is essential for linguists, language teachers, speech–language pathologists, and even singers and actors. In Canada, it supports work on English, French, and Indigenous language documentation, and appears in university courses, dictionaries, and language-learning materials.

Key details

Developed in the late 19th century by the International Phonetic Association, with contributions from Otto Jespersen, Paul Passy, A.J. Ellis, Henry Sweet, and Daniel Jones. Symbols are based mainly on the Latin script, with modified and Greek-derived characters. The IPA chart groups sounds by how and where they are articulated.

In short

  • The IPA gives a unique symbol to each speech sound.
  • It is used in linguistics, dictionaries, and language teaching.
  • Developed in 1888 by the International Phonetic Association.
  • Widely applied in Canada for English, French, and Indigenous languages.
Canadian angle

The IPA is used in Canadian universities, schools, dictionaries, and language-teaching contexts, including work on English, French, and Indigenous language documentation.

Quick questions

What is the International Phonetic Alphabet?
The International Phonetic Alphabet is a standardized set of symbols used to represent the sounds of spoken language.
How many symbols are in the IPA?
There is no single fixed count; one source describes 107 consonant and vowel symbols, plus diacritics and other marks.
Who created the IPA?
It was devised by the International Phonetic Association in the late 19th century, with major contributions from Paul Passy, A.J. Ellis, Henry Sweet, Daniel Jones, and Otto Jespersen.

Sources

  1. Wikipediahttps://en.wikipedia.org/wiki/International_Phonetic_Alphabet
    Supports: General definition, origin in the International Phonetic Association, and broad user groups.
  2. Encyclopaedia Britannicahttps://www.britannica.com/topic/International-Phonetic-Alphabet
    Supports: Historical development, purpose, creators, and use as a pronunciation standard.
  3. Simple English Wikipediahttps://simple.wikipedia.org/wiki/International_Phonetic_Alphabet
    Supports: Introductory description and creation date associated with the International Phonetic Association.
  4. Vocabulary.comhttps://www.vocabulary.com/resources/ipa-pronunciation/
    Supports: IPA as a pronunciation system and one-to-one sound-symbol correspondence.
  5. Duolingohttps://www.duolingo.com/blog/how-is-the-international-phonetic-alphabet-used
    Supports: Uses, motivation for development, and the reported 107 consonant and vowel symbols.
  6. Dictionary.comhttps://www.dictionary.com/browse/international-phonetic-alphabet
    Supports: Definition and note that the IPA is a standardized system based on Roman letters with added symbols.
  7. Encyclopedia.comhttps://www.encyclopedia.com/humanities/encyclopedias-almanacs-transcripts-and-maps/international-phonetic-alphabet
    Supports: Historical development, structure, and uses in transcription.
  8. Cambridge Dictionaryhttps://www.cambridge.org/dictionary/english/international-phonetic-alphabet
    Supports: Definition as a system of symbols for showing speech sounds.