shark

shark — noun

1. a large saltwater fish with rows of razor-sharp teeth and a triangular fin risin

1.名詞A2
釋義

a large saltwater fish with rows of razor-sharp teeth and a triangular fin rising from its back. Certain species of shark can be dangerous to people swimming in the ocean.

例句

Joon saw the fin of a shark cutting through the water near the boat.

body parts: fin; typical verb: cutting through the water

The aquarium has a new tank where visitors can watch sharks swim overhead.

collocation: watch sharks swim

文法句型

the + noun

a/an + noun

noun + verb (singular/plural)

常見錯誤

The killer whale is a type of shark.
The killer whale is a type of whale.
💡killer whales are mammals, not sharks; sharks are fish with no bones in their skeleton.

2. a dishonest person who takes money from others by cheating them or lending money

2.名詞B2
釋義

a dishonest person who takes money from others by cheating them or lending money at unacceptably high interest rates

例句

The loan shark threatened Walid when he could not pay back what he owed.

compound noun: loan shark

Be careful with that car dealer — he is a real shark who tricks customers into bad deals.

informal use: 'a real shark'

同義詞
  • swindler

    more formal; emphasises the act of cheating rather than aggressive lending

  • usurer

    technical term specifically for someone who charges excessive interest; very rare in everyday English

文法句型

a/an + noun

noun + noun (compound modifier)

loan shark (compound noun)

用法筆記

When used as a modifier before another noun (loan shark, property shark, business shark), the term specifies the area where the person cheats others. This sense is almost always informal and disapproving.

常見錯誤

The bank manager was a loan shark.
The loan shark charged him 30% interest every month.
💡a loan shark is an illegal moneylender, not a bank employee.

3. someone who is exceptionally good at a particular game or activity, especially w

3.名詞B2
釋義

someone who is exceptionally good at a particular game or activity, especially when their talent allows them to win against less experienced players

例句

The pool shark cleaned out every player in the room without ever missing a shot.

phrase: pool shark

Gabriela earned the nickname "card shark" after winning seven poker games in one evening.

phrase: card shark

同義詞
  • expert

    neutral and formal; lacks the informal/game-like tone of 'shark'

  • ace

    informal with similar tone; used especially for sports and games

文法句型

[game/activity] + shark

pool shark

用法筆記

This sense often describes someone whose skill gives them an advantage over less experienced people, sometimes with a hint of trickery. In American English, 'pool shark' and 'card shark' are the most common uses. Do not confuse with the DISHONEST PERSON sense — a pool shark may simply be highly skilled, not necessarily a cheat.

shark — verb