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 …

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

an act or instance of knocking out. the state or fact of being knocked out. a knockout blow. Informal., a person or thing overwhelmingly attractive, appealing, or successful.

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 …

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

A knockout, in several sports, is a strike that renders an opponent unable to continue fighting. Knockout may also refer to: The Knockout, a 1914 Keystone Studios film with Fatty Arbuckle …

In boxing, a knockout is a situation in which a boxer wins the fight by making their opponent fall to the ground and be unable to stand up before the referee has counted to ten.

The 2025 PFL World Tournament Finals concluded tonight at Seminole Hard Rock Hotel & Casino in Hollywood, Florida, with Tournament Champions being crowned in the Heavyweight, …

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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: