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Definition of 'shark'


  1. any of numerous elongate mostly marine carnivorous fishes with heterocercal caudal fins and tough skin covered with small toothlike scales
  2. a person who is ruthless and greedy and dishonest
  3. a person who is unusually skilled in certain ways; "a card shark"


  1. play the shark; act with trickery
  2. hunt shark

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