/ Thesaurus / C Synonyms of c clef Find synonyms for: Noun1. C clef, clefusage: a movable clef that puts middle C on one of the lines of a staffWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: alacrity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language