| Imperative |
|---|
| shark |
| shark |
| Noun | 1. | shark - any of numerous elongate mostly marine carnivorous fishes with heterocercal caudal fins and tough skin covered with small toothlike scaleselasmobranch, selachian - any of numerous fishes of the class Chondrichthyes characterized by a cartilaginous skeleton and placoid scales: sharks; rays; skates cow shark, Hexanchus griseus, six-gilled shark - large primitive shark widely distributed in warm seas mackerel shark - fierce pelagic and oceanic sharks Alopius vulpinus, fox shark, thresher shark, thresher, thrasher - large pelagic shark of warm seas with a whiplike tail used to round up small fish on which to feed carpet shark, Orectolobus barbatus - shark of the western Pacific with flattened body and mottled skin Ginglymostoma cirratum, nurse shark - small bottom-dwelling shark of warm shallow waters on both coasts of North America and South America and from southeast Asia to Australia Carcharias taurus, Odontaspis taurus, sand shark, sand tiger - shallow-water shark with sharp jagged teeth found on both sides of Atlantic; sometimes dangerous to swimmers Rhincodon typus, whale shark - large spotted shark of warm surface waters worldwide; resembles a whale and feeds chiefly on plankton cat shark - small bottom-dwelling sharks with cat-like eyes; found along continental slopes requiem shark - any of numerous sharks from small relatively harmless bottom-dwellers to large dangerous oceanic and coastal species dogfish - any of several small sharks hammerhead shark, hammerhead - medium-sized live-bearing shark with eyes at either end of a flattened hammer-shaped head; worldwide in warm waters; can be dangerous angel shark, Squatina squatina, angelfish, monkfish - sharks with broad flat bodies and winglike pectoral fins but that swim the way sharks do |
| 2. | shark - a person who is ruthless and greedy and dishonest | |
| 3. | shark - a person who is unusually skilled in certain ways; "a card shark" expert - a person with special knowledge or ability who performs skillfully | |
| Verb | 1. | shark - play the shark; act with trickery |
| 2. | shark - hunt shark fish - catch or try to catch fish or shellfish; "I like to go fishing on weekends" |