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delude

American  
[dih-lood] / dɪˈlud /

verb (used with object)

  • deludes,
    present (3rd person singular)
  • deluded,
    past participle,  past
  • deluding
    present participle
  1. to mislead the mind or judgment of; deceive.

    His conceit deluded him into believing he was important.

    Synonyms:
    gull, defraud, cheat, dupe, cozen, beguile
  2. Obsolete. to mock or frustrate the hopes or aims of.

  3. Obsolete. to elude; evade.


delude British  
/ dɪˈluːd /

verb

  1. to deceive the mind or judgment of; mislead; beguile

  2. rare to frustrate (hopes, expectations, etc)

"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

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Etymology

Origin of delude

First recorded in 1400–50; late Middle English deluden, from Latin dēlūdere “to play false,” equivalent to dē- de- + lūdere “to play”

Explanation

To delude is to trick or fool, often in relation to yourself. If you delude yourself into thinking your mom's chocolate cake is low in fat, you'll be disappointed to find out it's made with two sticks of butter! If you delude someone into thinking something, you are making a fool of them, or making them foolish. The word shares a root with ludicrous which means completely ridiculous. The thing that you foolishly believe is a delusion. Someone with delusions of grandeur has deluded themselves into thinking they are very, very special.

Keep Reading on Vocabulary.com

Vocabulary lists containing delude

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:

"To cheat, trick, deceive, delude with false pretences; to impose upon, take in, hoax."

From BBC ● Sep. 29, 2026

"People delude themselves that the human race is so clever that we'll come up with some wonderful technology that'll make this all go away."

From Barron's ● Aug. 3, 2026

Some people delude themselves into thinking they’re financially independent when they’re not.

From MarketWatch ● Jul. 12, 2026

He’s also “theologically” grateful to be reminded that he is “dependent,” that “I can’t delude myself in claiming that I’m self-sufficient.”

From The Wall Street Journal ● Mar. 13, 2026

John Faa said, “Lyra, there en’t no question of taking you into danger, so don’t delude yourself, child. Stay here and help Ma Costa and keep safe. That’s what you got to do.”

From "The Golden Compass" by Philip Pullman

She concocts a fantasy, one that Arthur deludes himself into believing.

From Salon ● Oct. 12, 2024

It deludes us into thinking that someone else is going to rush in while we watch and cheer from the stands.

From Slate ● Mar. 4, 2024

Perhaps May also deludes herself that the present moment is especially propitious for a renewal of “our special relationship”.

From The Guardian ● Feb. 14, 2017

One good way of describing a speculative bubble is a moment when society deludes itself into believing that something plentiful is scarce, or will soon be.

From New York Times ● Feb. 10, 2017

But beneath the fair semblance of nature that for a time deludes our senses, a dark and terrible reality is concealed.

From Creed And Deed A Series of Discourses by Felix Adler

Pauling may never be fully vindicated, but neither was he simply deluded.

From Science Daily ● Aug. 7, 2026

If that’s the case, he is more deluded than he seems to think the rest of us are.

From Slate ● Apr. 30, 2026

But he is also so paranoid, deluded and consumed with self-loathing that throughout this caustically witty novel we can’t help but root for him every step of the way.

From The Wall Street Journal ● Jan. 2, 2026

"They weren't there; they weren't involved in the investigation. Some of these people are deluded," he says.

From BBC ● Dec. 6, 2025

He’d continued down to the beach still unaffected, the bad news acting with a kind of discretion, allowing him these last few peaceful, deluded moments.

From "Middlesex: A Novel" by Jeffrey Eugenides

"She must have known. If she didn't know, she was deluding herself, because she was there," he said.

From BBC ● May 20, 2026

There could be “huge social ruptures where one side sees the other as very cruelly exploiting AI while the other side sees the first as deluding itself into thinking there’s sentience there,” he said.

From Salon ● Jun. 10, 2025

But if they really believe they can stay in these two separate lanes, they’re deluding themselves.

From Slate ● May 23, 2025

“But I think really they will be deluding themselves if they think that that bodes well for the next general election.”

From Washington Times ● Jul. 21, 2023

This is her accomplishment these days: deluding the tutor.

From "Cat's Eye" by Margaret Atwood

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