joker

/ˈdʒəʊkə(r)/ (bre, ipa) · /ˈdʒəʊkər/ (ame, ipa) · /ˈjō-kər/ (ame, mw)

joker — noun

  • jokersingular
  • jokersplural

1. an extra card in a deck that can stand for different cards, or count as the stro

1.名詞B1
釋義

an extra card in a deck that can stand for different cards, or count as the strongest card, depending on the game's rules.

例句

Daniel saved the joker for the last round and used it as any card.

game use: joker as a wild card

Amira won when the joker became the highest card in that family game.

game use: highest card by rule

同義詞
  • wild card

    emphasizes the replace-any-card role; not every game uses joker as the highest card

用法筆記

Used in card games and similar table games. Depending on the rules, it may replace another card or outrank the rest of the pack.

2. a person who keeps fooling around, making playful remarks, and trying to get a l

2.名詞B1
釋義

a person who keeps fooling around, making playful remarks, and trying to get a laugh from other people.

例句

Christopher is such a joker that even the bus driver laughed at his comment.

pattern: be such a joker that ...

At lunch, Sofia played the joker and turned every complaint into a joke.

pattern: play the joker

同義詞
  • prankster

    suggests someone who plays tricks, not just someone with a lively sense of humor

  • wisecracker

    focuses on quick funny remarks and can sound slightly sharper

用法筆記

Usually friendly or playful, often describing someone's general personality. If the speaker is irritated by one act, sense 3 is more likely.

3. an informal name for someone who has just done something foolish or irritating a

3.名詞B1
釋義

an informal name for someone who has just done something foolish or irritating and made you lose patience.

例句

Christopher forgot the tickets again, and his sister called him a joker.

pattern: call someone a joker

"You joker, you nearly locked us out of the flat," Amira said.

spoken use: You joker

同義詞
  • idiot

    much stronger and more insulting than joker

  • nuisance

    focuses on causing trouble rather than on a single foolish act

用法筆記

Usually informal and spoken when the person has just done something annoying or silly. It can sound mild or affectionate, but the speaker is showing irritation, unlike sense 2.

4. a person, event, or condition that suddenly changes where a situation seemed to

4.名詞C1
釋義

a person, event, or condition that suddenly changes where a situation seemed to be heading.

例句

The rain was the joker in our picnic plans and sent everyone indoors.

pattern: the joker in ...

A late injury became the joker in the final and changed the whole match.

同義詞
  • wild card

    more common in modern English for an unknown factor in a contest or plan

  • X factor

    suggests a hidden influence or special quality, not always a disruptive one

用法筆記

Usually used about events, conditions, or people that upset a likely result. Unlike sense 5, it is not about wording inside a document.

5. a small, easily missed word or sentence in a legal or official text that quietly

5.名詞C2
釋義

a small, easily missed word or sentence in a legal or official text that quietly changes what the document really allows or blocks.

例句

The contract had a joker that let the company raise the fee later.

legal use: a joker in a contract

Abigail asked a lawyer to check the bill for any joker before signing it.

同義詞
  • loophole

    often means a way to avoid a rule, while joker is the hidden wording that creates the problem

  • proviso

    a formal condition added openly; joker suggests the condition is easy to miss

用法筆記

Used mainly in legal, political, or contract contexts about wording inside a text. Unlike sense 4, the joker is the clause itself, not a general outside factor.