Knockout - Wikipedia A knockout (abbreviated to KO or K O ) is a fight-ending, winning criterion in several full-contact combat sports, such as boxing, kickboxing, Muay Thai, mixed martial arts, karate, some forms of taekwondo and other sports involving striking, as well as fighting -based video games
KNOCKOUT | English meaning - Cambridge Dictionary knockout noun [C] (COMPETITION) (US elimination tournament) a competition in which only the winners of each stage play in the next stage, until one competitor or team is the final winner:
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knockout - WordReference. com Dictionary of English a panel in a casing, can, or box, esp of metal or plastic, so designed that it can readily be removed, as by punching, hammering, or cutting, to provide an opening into the interior: a knockout in a junction box
Knockout - definition of knockout by The Free Dictionary knock•out (ˈnɒkˌaʊt) n 1 an act or instance of knocking out 2 the state or fact of being knocked out 3 a knockout blow 4 Informal a person or thing overwhelmingly attractive, appealing, or successful