Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Linguistics, Letters & punctuationschwaschwa /ʃwɑː/ noun [countable] technical 1 SLa vowel typically heard in parts of a word that are spoken without stress1(4), such as the ‘a’ in ‘about’2 the sign (ə), used to represent the vowel schwaOrigin schwa (1800-1900) German Hebrew shewa ldoceonline.com