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Establishing vowel contrasts Minimal pairs
المؤلف:
April Mc Mahon
المصدر:
An introduction of English phonology
الجزء والصفحة:
79-7
18-3-2022
1310
Establishing vowel contrasts
Minimal pairs
Minimal pairs and the commutation test are the main tools available to the phonologist in ascertaining phonemic contrast among both consonants and vowels. A minimal pair list for SSBE vowels appears in (1).
The list above provides evidence for almost all phonemically contrastive vowels of SSBE, with a very small number of exceptions. Since schwa only appears in unstressed syllables, where most of the other vowels cannot appear, we must make do with near-minimal comparisons in this case, contrasting the second, unstressed syllable of sherbet with the various stressed syllables in (1). The short vowels /υ/ and /ɒ/, and the centring diphthongs, which were listed as SSBE vowels, do not appear in the selected context /b-t/; but the additional data in (2) shows that /υ/ and /ɒ/ on the one hand, and the three centring diphthongs on the other, contrast both with one another and with representative members of the list in (1). Phonemic contrast is a transitive relationship, meaning that if phoneme a contrasts with phoneme b, and phoneme b contrasts with phoneme c, then phonemes a and c also contrast: this means that if a contrast can be established between one of the ‘left-out’ vowels and any vowel in (1), then that vowel can be taken as contrasting with all the vowels in (1).
Sets of minimal pairs like this may work very well for one accent, but not for another. For instance, minimal pairs like lock /k/ versus loch /x/, or witch /w/ versus which