The meaning of KNOCKOUT is the act of knocking out : the condition of being knocked out. How to use knockout in a sentence.

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 …

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:

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.

KNOCKOUT definition: an act or instance of knocking out. See examples of knockout used in a sentence.

If you describe someone or something as a knockout, you think that they are extremely attractive or impressive.

Jan 6, 2026 · The 2025-26 Africa Cup of Nations is into the knockout stage with the semifinals taking place on Wednesday, Jan. 14 for the tournament being hosted by Morocco. This year's final is set for …

Get started with knockout.js quickly, learning to build single-page applications, custom bindings and more with these interactive tutorials.

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.

Not all boxing matches end this way, but a knockout is the most exciting (and dangerous) way for a match to end. This word is also used to mean "gorgeous person," so if someone tells you you're a …