knock

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

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This entry was last updated on RefTopia from its source on 3/20/2012.