A Shortcut

ˈwaɪz əˈbriːviˈeɪʃn̩ | ˈsʌʧ ə ˈlɒŋ ˈwɜːd

Key at bottom of page.

Commentary

why’s: When unstressed, as it usually is, the word is can have three different pronunciations, depending on the final sound of the immediately preceding word:

•          When the final sound of the preceding word is /s z ʃ ʒ ʧ ʤ/, then is has the form /ɪz/, e.g. Chris is well /ˈkrɪs ɪz ˈwel/.
•          When the final sound of the preceding word is a voiceless consonants (excluding the consonants listed above), then is has the form /s/ and forms a contraction with the preceding word, e.g. Jack is well /ˈʤæks ˈwel/.
•          If the final sound of the preceding word is voiced (i.e. a vowel or a voiced consonant (excluding the consonants listed above)), then is has the form /z/ and forms a contraction with the preceding word, e.g. John is well /ˈʤɒnz ˈwel/.

The symbol i represents the same vowel phoneme as the symbol iː. We use i in unstressed syllables and iː in stressed syllables. This distinction isn't very helpful for TEFL purposes and learners should simply treat the two symbols as the same. Because we are using two different symbols for one phoneme, this means our transcription isn't truly phonemic (phonemic transcription = one symbol for each phoneme).

abbreviation: Phonemically, the final syllable of abbreviation is /ən/. When this syllable is preceded by /ʃ/, however, the schwa /ə/ often isn't pronounced. Instead the articulators move directly from the position for /ʃ/ to the position for /n/. This is relatively easy to do because /ʃ/ is a fricative, a category of sound which involves making a very narrow stricture in the vocal tract. It is possible, therefore, for the articulators to move from such a position to the complete closure required for /n/ (accompanied by the lowering of the soft palate to allow air to escape out through the nose) without passing through the position for a vowel and thereby avoiding an intervening schwa /ə/.

Note that in English, syllabic /n/ is not a phoneme in its own right, but merely a special way of realising the syllable /ən/. This means that when we use a special symbol [n̩] for it in transcription, it makes our transcription non-phonemic (because we are now using more than one symbol for each phoneme and introducing a special symbol to show a particular phonetic detail).

such: The word such is often stressed, but when it isn’t (notably in the phrase such as), it occasionally has the weak form /səʧ/.

a: When unstressed, as it usually is, the indefinite article a has the weak form /ə/.

Why’s ‘abbreviation’ such a long word?