Breadcrumb Home > Thesaurus > K Synonyms of kayo Find synonyms for: Noun 1. knockout, KO, kayo, blow usage: a blow that renders the opponent unconscious Verb 1. knock cold, knock out, kayo, beat, beat up, work over usage: knock unconscious or senseless; "the boxing champion knocked out his opponent in a few seconds" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of kayo (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: troglodyte Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language