knock cold knock back • knockdown · · · Info · Definitions · Synonyms · Characters · · knock cold · · Text Common · · Latin · · Scripts 10 · · Length 2 · · Syllables Definitions · · · (verb) knock unconscious or senseless. Synonyms: knock cold, knock out, kayo. Example: "The boxing champion knocked out his opponent in a few seconds." · · Verb Definition 1 Synonyms · · · knock out · · Synonym 1 kayo · · Synonym 2 Characters · · space U+0020 c latin small letter c U+0063 d latin small letter d U+0064 k latin small letter k U+006B l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F