The phonetic alphabet most often meant in linguistics is the International Phonetic Alphabet, or IPA: a system of symbols used to represent sounds in spoken languages. Unlike ordinary spelling, which may use the same letter for different sounds or different letter groups for the same sound, IPA symbols aim to show pronunciation more directly. The IPA is not a secret code for English spelling, and its symbols do not represent whole words by themselves.
Why spelling cannot do the whole job
English spelling can obscure pronunciation. The letter “a” represents different vowel sounds in “nab,” “father,” “halo,” and “diva.” Meanwhile, a similar vowel can be written with “i,” “ee,” “ea,” “e,” or “y,” as in “diva,” “meet,” “meat,” “me,” and “mummy.” These examples show why spelling alone is a poor guide to exact sound. [2]
The IPA gives a shared set of conventions for writing speech sounds. The International Phonetic Association maintains the official alphabet and its chart, and says that approved changes to the chart are decided by its Council. It describes the system’s origins in the late nineteenth century and notes that the chart has undergone revisions. [1]
Symbols represent sounds, not letters
Linguistic notation distinguishes spelling from sound. Angle brackets can mark written letters, as in <sh>, while square brackets mark a pronunciation, as in [ʃ]. The spelling “sh” uses two letters for a sound commonly represented by one IPA symbol. Conversely, a single written letter may have different pronunciations depending on the word and the speaker’s variety.
A transcription is a written representation of pronunciation. A broad transcription records details relevant to a particular purpose; a narrower transcription can add detail about how a sound was produced. Neither is a complete recording of a person’s voice. The textbook notes that transcription choices can vary, including how linguists represent English rhotic sounds, and recommends following the conventions of a course or project when applicable. [2]
Read the chart by its organizing ideas
The IPA chart is arranged to show properties of speech sounds, not to list words alphabetically. Consonants are organized by where and how they are produced, with voicing also represented. Vowels are arranged by tongue height and frontness, with symbols showing positions in the mouth. The chart also includes other symbol groups, such as diacritics and suprasegmentals. The Association provides the official chart and separate chart sections, including a vowel chart. [1]
You do not need to memorize the chart before using it. Start with a few symbols relevant to a sound you want to describe. Notice how a symbol differs from the ordinary spelling and what articulatory feature it represents. Learning the organizing principles makes the chart easier to use than memorizing a long sequence of unfamiliar characters.
A small transcription exercise
Take the English word “ship.” Its first and last sounds are commonly represented in IPA as [ʃ] and [p]. Try saying “ship,” then isolate the first sound: it is the sound at the start of “shoe,” not the name of the letters “s” and “h.” Now compare “sip,” which begins with [s]. The pair gives you a concrete way to connect symbols with audible contrasts.
For a next step, choose three short words containing a sound you want to notice. Listen to each, find a reliable transcription that matches the variety being described, and write the symbol beside the word. Keep the speaker and accent in view: a transcription should describe a pronunciation, not declare one pronunciation the only correct form.
Do not confuse IPA with spelling aids
People sometimes use “phonetic alphabet” for systems that assign code words to letters, such as a spelling alphabet used to distinguish a spoken “B” from “D” over a noisy connection. Those systems help communicate letter names; the IPA represents speech sounds. The term can also be used informally for pronunciation guides written in simplified respellings. Those may be convenient, but readers can interpret their letters differently because their own spelling habits vary.
When someone asks what a phonetic alphabet is, first check the purpose. For linguistic description and pronunciation study, IPA is the relevant system. For spelling out a name over the phone, a code-word alphabet solves a different problem.
