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(Phonetics & Phonology) a variant spelling of schwa
n., pl. schwas or shwas.
1. the mid-central, neutral vowel sound typically occurring in unstressed syllables in English, as the sound of a in alone and sofa or u in circus.
2. the phonetic symbol ə, used to represent this sound.
[1890–95; < German < Hebrew shəwā name of a diacritic marking schwa or no vowel]