Dictionary.com
Thesaurus.com
Synonyms

joker

American  
[joh-ker] / ˈdʒoʊ kər /

noun

  • jokers
    plural
  1. a person who jokes.

  2. one of two extra playing cards in a pack, usually imprinted with the figure of a jester, used in some games as the highest card or as a wild card.

  3. U.S. Politics. a clause or expression inserted in a legislative bill with the unavowed object of defeating the ostensible purpose of the bill if passed.

  4. a seemingly minor, unsuspected clause or wording that is put into an agreement, legal document, etc., to change its effect.

  5. an unexpected or final fact, factor, or condition that changes or reverses a situation or result completely.

    He gave her a beautiful diamond engagement ring, but the joker was that it was stolen!

  6. any method, trick, or expedient for getting the better of another.

    They pulled a joker on us to get better seats.

  7. Informal. a man; fellow; chap.

    That joker is earning twice as much as I am.

  8. a person who thinks they are very funny; prankster.

    Who's the joker who frosted the cake with shaving cream?

  9. Informal. a wise guy; wiseacre; smart aleck.

    Tell that joker to stop using my parking space.


joker British  
/ ˈdʒəʊkə /

noun

  1. a person who jokes, esp in an obnoxious manner

  2. slang a person

    who does that joker think he is?

  3. an extra playing card in a pack, which in many card games can substitute for or rank above any other card

  4. a clause or phrase inserted in a legislative bill in order to make the bill inoperative or to alter its apparent effect

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of joker

First recorded in 1720–30; joke + -er 1

Explanation

A joker is someone who loves jokes, and tells them all the time. Jokers are usually harmless, unless you meet up with Batman's archenemy, "The Joker." He's no joke. A joke-teller or practical joke-player is one kind of joker, but you can also use this word when you're annoyed with someone who's acting ridiculous or foolish: "That joker in the convertible just ran a red light!" Card players might be more familiar with the jokers you find in a full deck, the extra cards that are either used as wild cards or removed when you play a game.

Keep Reading on Vocabulary.com

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Against Portugal in the previous round, 30-year-old midfielder Mikel Merino had proven himself as the joker in La Roja’s pack by scoring the winner in stoppage time.

From The Wall Street Journal Jul. 10, 2026

Michael Jackson’s estate could’ve existed in this gray area forevermore, letting his memory hover somewhere between genius and joker.

From Salon Apr. 25, 2026

The joker in the global fixed-income deck is the possibility that the Fed could reverse a dovish trajectory to raise rates again in response to war-related inflationary pressures, Al-Hussainy adds.

From Barron's Apr. 20, 2026

The wild-card series is a joker compared to the waiting full house.

From Los Angeles Times Oct. 2, 2025

Skeet was an extrovert, a goofball, a practical joker.

From "The 57 Bus" by Dashka Slater

Some of the biggest jokers count on their fans’ defiant loyalty more than on the quality, profundity and durability of the jokes they’re telling.

From Salon Jul. 3, 2026

American mahjong, nationalized by Jewish women, adds eight jokers, an elaborate tile-trading process called “the Charleston” and a dizzying card that changes annually and lists 70-odd winning lines—which can produce more than 1,000 combinations.

From The Wall Street Journal Apr. 17, 2026

She was seen as one of the jokers of the group, usually found stood near best friend Rachel Daly or midway through a TikTok dance with Mary Earps.

From BBC Oct. 13, 2025

Why did internet jokers think to transform Vance into a giant baby?

From Slate Aug. 6, 2025

But Finn didn’t like movies, and he thought the crows were nothing but jokers and thieves.

From "Bone Gap" by Laura Ruby

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training