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Synonyms

dupe

1 American  
[doop, dyoop] / dup, djup /

noun

  1. a person who is easily deceived or fooled; gull.

  2. a person who unquestioningly or unwittingly serves a cause or another person.

    a dupe of the opponents.


verb (used with object)

duped, duping
  1. to make a dupe of; deceive; delude; trick.

dupe 2 American  
[doop, dyoop] / dup, djup /

noun

  1. duplicate.

  2. Movies.

    1. a duplicate picture negative used for making additional release prints or for making special effects to be inserted in the release negative.

    2. the procedure for producing such a duplicate.

  3. Television. a duplicate videotape obtained by electronic printing of the original videotape.


verb (used with or without object)

duped, duping
  1. to duplicate.

adjective

  1. duplicate.

dupe British  
/ djuːp /

noun

  1. a person who is easily deceived

  2. a person who unwittingly serves as the tool of another person or power

"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

verb

  1. (tr) to deceive, esp by trickery; make a dupe or tool of; cheat; fool

"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


Etymology

Origin of dupe1

First recorded in 1675–85; from French; Middle French duppe for unattested tête d'uppe “head of hoopoe,” i.e., “fool” (compare tête de fou ), from unattested Vulgar Latin uppa, Latin upupa “hoopoe,” a bird thought to be especially stupid; cf. hoopoe

Origin of dupe2

First recorded in 1895–90; by shortening


Explanation

A dupe is a furry, ceremonial hat worn during ancient pagan rituals...or not. Dupe actually means “trick or deceive.” We’re sorry we tried to dupe you into believing the wrong definition. Dupe can also refer to the victim of a trick or hoax, and — used in this sense — it sometimes conveys the idea that the victim is easily fooled. Dupe comes from the French word for a type of bird called the hoopoe, which has an extravagant crest and a reputation for being dim-witted. (And no, that's not another attempt to dupe you; it's the truth!)

Keep Reading on Vocabulary.com

Vocabulary lists containing dupe

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:

Is she letting the cameras in to dupe us, to make us feel sorry for someone whose actions caused real harm?

From Salon ● Oct. 17, 2026

Before this season, savvy pitchers with expert command and dazzling spin had been able to dupe human umps into calling strikes on balls just off the plate, a time-honored tradition that had existed for generations.

From The Wall Street Journal ● May 6, 2026

Large language models are used to write convincing emails to dupe people out of their money, causing an eight-fold increase in complaints from older Americans as they lost $4.9 billion in online fraud in 2025.

From Los Angeles Times ● Mar. 5, 2026

People should also watch out for scams, with criminals attempting to dupe taxpayers by purporting to be from HMRC.

From BBC ● Jan. 30, 2026

He could not be accused of being a dupe of the government or of having gone soft.

From "Long Walk to Freedom" by Nelson Mandela

But even if there’s no hard camera footage of Kao giving Collins burlap sacks full of cash, there is undoubtedly a story that she got duped into delivering federal dollars to a scammer.

From Slate ● Sep. 26, 2026

Tourists duped into booking fake stays at 10 Downing Street.

From MarketWatch ● Sep. 2, 2026

But the optimist in me still gets duped from time to time.

From Salon ● Sep. 2, 2026

Matthew's father was cleared of any involvement as he was also duped by Hayden-Johnson.

From BBC ● Aug. 19, 2026

On the other hand, if B takes the individualist option, at least I won’t be duped if I do, too.

From "Innumeracy: Mathematical Illiteracy and Its Consequences" by John Allen Paulos

Though there have been stories about kids cutting through the pouches or duping administrators by putting in decoy phones, those troublemakers amount to only a small percentage.

From The Wall Street Journal ● Aug. 29, 2026

He last month told the BBC that Kenyan authorities had closed more than 600 recruitment agencies suspected of duping Kenyans with promises of jobs overseas.

From BBC ● Mar. 16, 2026

The agency, which protects consumers from unfair business practices, accused Amazon of duping people into automatically renewing their Amazon Prime subscriptions through “manipulative, coercive, or deceptive user-interface designs.”

From Los Angeles Times ● Sep. 25, 2025

Alongside developing a relationship with fans and duping them into thinking Fegan was real Tegan, Fegan crossed other boundaries with Tegan's personhood.

From Salon ● Oct. 18, 2024

The entire food chain of intermediaries in the subprime mortgage market was duping itself with the same trick, using the foreshortened, statistically meaningless past to predict the future.

From "The Big Short" by Michael Lewis

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