knock out

verb

Definition of knock out

  1. transitive verb
  2. 1 :  to produce roughly or hastily

  3. 2a (1) :  to defeat (a boxing opponent) by a knockout (2) :  to make unconscious the drug knocked him outb :  to make inoperative or useless electricity was knocked out by the stormc :  to get rid of :  eliminate knocked out illegal gambling

  4. 3 :  to tire out :  exhaust knocked themselves out with work

  5. 4 :  to cause (an opposing pitcher) to be removed from a baseball game by a batting rally

Examples of knock out in a Sentence

  1. the entire staff knocked itself out getting the project finished on time

1856

First Known Use of knock out

1856



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