A '''knockout''' is a victory in boxing or other full-contact combat sports (such as kickboxing or the martial arts) in which one's opponent is unable to rise from the canvas/floor/ground within a specified time after being knocked down or is judged too injured to continue.
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A '''knockout''' is a victory in boxing or other full-contact combat sports (such as kickboxing or the martial arts) in which one's opponent is unable to rise from the canvas/floor/ground within a specified time after being knocked down or is judged too injured to continue.[http://www.thefreedictionary.com/knockout]