Breadcrumb Home > Thesaurus > V Synonyms of vowel Find synonyms for: Noun 1. vowel, vowel sound, phone, speech sound, sound usage: a speech sound made with the vocal tract open 2. vowel, letter, letter of the alphabet, alphabetic character usage: a letter of the alphabet standing for a spoken vowel WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of vowel (Dictionary) ✖ Related Content Daily Word Quiz: derogate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language