Definition of knock

Definition of knock
  1. knock Noun An abrupt rapping sound, as from an impact of a hard object against wood
  2. knock Noun An impact.
  3. knock Noun a batsman's innings.
  4. knock Noun A type of abnormal combustion occurring in spark ignition engines caused by self-ignition or the characteristic knocking sound associated with it.
  5. knock Verb To rap one's knuckles against something, especially wood.
  6. knock Verb To bump or impact.
  7. knock Verb To denigrate, undervalue.
  8. knock Verb To pass, kick a ball towards another player.
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