sharkshark /ʃɑːk $ ʃɑːrk/ ●●○ noun [countable] 
a large sea fish with several rows of very sharp teeth that is considered to be dangerous to humans: 
Sharks were circling around our boat.shark-infested waters (=waters where there are a lot of sharks)2informal someone who cheats other people out of moneypool/card shark (=someone who uses their skill at pool or cards to cheat other players out of money) → loan shark
WORD ORIGINshark
Origin:
1 1400-1500 Origin unknown. 2 1500-1600 Probably from German schurke ‘bad man’; influenced by ➔ SHARK (1)EXAMPLES FROM THE CORPUS
- It was only a small shark about three feet long so I ignored it and began the survey.
- The currents helped him, but those currents are filled with sharks.
- The skyline, from any part of this magical plateau, was toothed like the jaw of a shark.
- The whales favour large prey, including squid, cod and sharks.
- This time its offerings include a dead shark floating in a tank of formaldehyde.
- Unlike sharks, they don't waste energy preventing themselves from sinking.
- Yes, beaming, grinning like a shark.
- You got your freezing water, your sharks and your hepatitis.
WORD SETS
anchovy, nounbarracuda, nounbass, nouncarp, nouncod, nounconger eel, noundab, noundogfish, noundorsal, adjectivedory, nouneel, nounfin, nounfish, nounfish farm, nounflatfish, nounflounder, nounflying fish, noungill, noungoldfish, nounguppy, nounhaddock, nounhake, nounhalibut, nounherring, nounmarlin, nounminnow, nounmullet, nounpelagic, adjectiveperch, nounpike, nounpilchard, nounpiranha, nounplaice, nounray, nounroach, nounsalmon, nounsardine, nounschool, nounshark, nounskate, nounsnapper, nounsole, nounspawn, verbspawn, nounsprat, nounsturgeon, nounsunfish, nountiddler, nountrout, nountuna, nountunny, nounturbot, nounwhitebait, nounwhiting, noun
COLLOCATIONS FROM THE ENTRY shark-infested watersCOLLOCATIONS FROM THE CORPUSADJECTIVE
1 (=waters where there are a lot of sharks)
(=someone who uses their skill at pool or cards to cheat other players out of money)
COLLOCATIONS FROM OTHER ENTRIES shark-infested waters· But with them comes the threat of larger predators, namely the great white shark.· Human beings have no predators except great white sharks and one another, but they have lots of parasites.
· The reefs rise, luxurious, from the deeper sandy bed where manta and white tipped shark roam.· But with them comes the threat of larger predators, namely the great white shark.· Human beings have no predators except great white sharks and one another, but they have lots of parasites.
NOUN· The titles are stacking up like the poker chips of a red-hot card shark.· Where were the saloons and the gunslingers and the professional card sharks?
· It originally meant the pledging of the coming rice crop to local loan sharks.· As a class, professional golfers are swell well-scrubbed chaps and chaplets, infinitely preferable to professional wrestlers or professional loan sharks.· This compares with some loan sharks who can charge in excess of 10,000 percent!· In Ireland, the coverage of unions is now so extensive that the loan sharks have been almost driven out of business.
a large sea fish with several rows of very sharp teeth that is considered to be dangerous to humans: Sharks were circling around our boat.shark-infested waters (=waters where there are a lot of sharks)2informal someone who cheats other people out of moneypool/card shark (=someone who uses their skill at pool or cards to cheat other players out of money) → loan shark