noun
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the act of deceiving or the state of being deceived
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something that deceives; trick
Usage
What does deception mean? Deception is the act or practice of deceiving—lying, misleading, or otherwise hiding or distorting the truth. The related word deceit often means the same thing.Deception doesn’t just involve lying. It can consist of misrepresenting or omitting the truth or more complicated cover-ups. Anything that involves intentionally misleading someone is deception. People can even engage in self-deception by avoiding the truth.The word deception often implies a pattern of behavior, rather than a one-time act. The adjective deceptive can describe something that deceives or is intended to deceive. A person who engages in deception can be described as deceitful.Less commonly, the word deception can refer to an action, scheme, or trick intended to deceive, as in It was a clever deception, but I didn’t fall for it. Example: I’m sick of your constant lying and deception—I can’t trust anything you say!
Other Word Forms
- nondeception noun
- predeception noun
Etymology
Origin of deception
First recorded in 1400–50; late Middle English decepcioun, from Old French, from Late Latin dēceptiōn-, stem of dēceptiō “deceitfulness,” from Latin dēcept(us) “deceived” (past participle of dēcipere; deceive ) + -iō -ion
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.
Hatley said no to both questions but showed the highest level of deception in both answers, according to an affidavit that Stafford later filed.
From Slate • Apr. 6, 2026
The CIA also carried out a deception operation to throw the Iranians off the airman’s track.
From The Wall Street Journal • Apr. 5, 2026
A senior administration official told The Times that Saturday’s mission began with a deception campaign launched by the CIA to throw off Iran’s military.
From Los Angeles Times • Apr. 5, 2026
The agency engaged in a deception campaign inside Iran, reports said.
From BBC • Apr. 5, 2026
But there was nothing I could see, which may only have meant they were good at deception, as good as I was.
From "Cat's Eye" by Margaret Atwood
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.