Breadcrumb Home > Thesaurus > C Synonyms of cosh Find synonyms for: Noun 1. blackjack, cosh, sap, bludgeon usage: a piece of metal covered by leather with a flexible handle; used for hitting people Verb 1. cosh, hit usage: hit with a cosh, usually on the head WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of cosh (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: suigeneris Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language