/ Thesaurus / Q Synonyms of quarter tone Find synonyms for: Noun1. quarter tone, quarter-tone, interval, musical intervalusage: half of a semitoneWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language