Breadcrumb Home > Thesaurus > O Synonyms of omerta Find synonyms for: Noun1. omerta, code, codificationusage: a code of silence practiced by the Mafia; a refusal to give evidence to the police about criminal activitiesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of omerta (Dictionary) ✖ Related Content Daily Word Quiz: triumphalism Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language