Schwas

Part of speech: noun

Definitions

1. A mid-central vowel sound occurring in unstressed syllables, often represented by an upside-down 'e' symbol in phonetics
2. A neutral or weak vowel sound prevalent in many languages, serving as a transitional sound in speech
3. An essential component of syllable structure in linguistics, allowing for smoother vocal flow in utterances

Etymology: "Schwas" is the plural of "schwa," the name for the unstressed vowel in words like the first sound of "about." The base word comes from Hebrew, where "shewa" named a diacritic mark in the alphabet that signals a vowel that is either very short or absent altogether. German speakers borrowed the term and then applied it to the sound itself, and English adopted it from German.