shark has definitions from the fields of zoology,stock exchange
1
[ noun ] (zoology) any of numerous elongate mostly marine carnivorous fishes with heterocercal caudal fins and tough skin covered with small toothlike scales

Used in print

(Dolores Hitchens, Footsteps in the Night....)

He could n't see the grin that split her mouth ; the teeth that shone into the phone were like a shark 's .

2
[ verb ] hunt shark

Related terms

fish

3
[ noun ] (stock exchange) someone who lends money at excessive rates of interest

Related terms

lender

4
[ verb ] play the shark; act with trickery

Related terms

cheat

5
[ noun ] a person who is ruthless and greedy and dishonest

Related terms

wrongdoer usurer

6
[ noun ] a person who is unusually skilled in certain ways

Examples

"a card shark"

Related terms

expert

*