knock sb out - definition in the Learner's Dictionary - Cambridge Dictionaries Online

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English definition of “knock sb out”

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knock sb out

phrasal verb with knock
 
 
/nɒk/ verb
MAKE UNCONSCIOUS B2 to make someone become unconscious, usually by hitting them on the head: He was knocked out halfway through the fight.Losing consciousness
DEFEAT B2 to defeat a person or team in a competition so they cannot take part any more: [often passive] The French team were knocked out in the semifinal.Winning and defeatingScoring, winning and losing in sport
(Definition of knock sb out from the Cambridge Learners Dictionary © Cambridge University Press)
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