noun, plural KO’s.

  1. a knockout in boxing.

verb (used with object), KO’d, KO’ing.

  1. to knock unconscious, especially in a boxing match; knock out.

verb KO’s, KO’ing, KO’d, k.o.’s, k.o.’ing or k.o.’d

  1. a slang term for knock outSee knockout

noun plural KO’s or k.o.’s

  1. a slang term for knockout
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