Shark - Definition
shark
n 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"
v 1: play the shark; act with trickery
2: hunt shark