/ Thesaurus / B Synonyms of breach of contract Find synonyms for: Noun1. breach of contract, breachusage: a breach of a legal duty; failure to do something that is required in a contractWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: lyre Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language