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decoy

American  
[dee-koi, dih-koi, dih-koi] / ˈdi kɔɪ, dɪˈkɔɪ, dɪˈkɔɪ /

noun

  • decoys
    plural
  1. a person who entices or lures another person or thing, as into danger, a trap, or the like.

  2. anything used as a lure.

    Synonyms:
    allurement, inducement, bait, enticement
  3. a trained bird or other animal used to entice game into a trap or within gunshot.

  4. an artificial bird, as a painted wooden duck, used for the same purpose.

  5. a pond into which wild fowl are lured for capture.

  6. an object capable of reflecting radar waves, used as a spurious aircraft, missile, chaff, etc., for the deception of radar detectors.


verb (used with object)

  • decoys,
    present (3rd person singular)
  • decoyed,
    past participle,  past
  • decoying
    present participle
  1. to lure by or as if by a decoy.

    They decoyed the ducks to an area right in front of the blind.

verb (used without object)

  • decoys,
    present (3rd person singular)
  • decoyed,
    past participle,  past
  • decoying
    present participle
  1. to become decoyed.

    Ducks decoy more easily than most other waterfowl.

decoy British  

noun

  1. a person or thing used to beguile or lead someone into danger; lure

  2. military something designed to deceive an enemy or divert his attention

  3. a bird or animal, or an image of one, used to lure game into a trap or within shooting range

  4. an enclosed space or large trap, often with a wide funnelled entrance, into which game can be lured for capture

  5. another word for deke

"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. to lure or be lured by or as if by means of a decoy

  2. (tr) another word for deke

"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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Participles

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Etymology

Origin of decoy

1610–20; variant of coy (now dial.) < Dutch ( de ) kooi (the) cage, Middle Dutch cōie < Latin cavea cage


Explanation

A decoy is a fake version of something used to play a trick or lead you into danger, like the cork duck decoys hunters put on the pond to make the real ducks think it's safe to stop by. Decoy most often refers to bait used for trapping or killing an animal, but it can be any object or plan used to lead someone or something into trouble. Fisherman use worm decoys on their lures to catch fish, just like police use people as undercover decoys to catch criminals. While etymologists aren't positive, they suspect decoy comes from the Dutch kooi, which means “a cage.” So think of luring a mouse into a cage with a big slice of decoy cheese.

Keep Reading on Vocabulary.com

Vocabulary lists containing decoy

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:

The president sent the decoy plane into the air with everyone inside.

From Los Angeles Times ● Aug. 20, 2026

Left behind on the decoy plane were Secretary of State Marco Rubio, Treasury Secretary Scott Bessent, White House deputy chief of staff Stephen Miller and other administration officials and aides.

From Salon ● Aug. 17, 2026

Many of those on Air Force One, including the traveling press, didn’t appreciate discovering that they had been put on a decoy plane that government officials thought Iran might blow to smithereens.

From Slate ● Aug. 15, 2026

The Secret Service used a decoy plan to secretly transfer Trump to a smaller aircraft using a catering truck at the Ankara airport.

From The Wall Street Journal ● Aug. 13, 2026

The prisoner took several days to craft a version of herself to leave behind as a decoy.

From "The Marvellers" by Dhonielle Clayton

Those left on board were unwitting decoys and had no indication that Trump was no longer travelling with them.

From BBC ● Aug. 11, 2026

Some traveling media expressed anger at having unwittingly served as decoys, while others complained about deception and lack of communication from the White House.

From Barron's ● Aug. 11, 2026

From there, he scrambled two convoys as decoys, then drove to the nearby coast as an Emirati drone kept watch overhead.

From Los Angeles Times ● Jan. 20, 2026

Companies sell decoys, which trail planes or ships, sometimes looking like a missile, and emit signals to confuse adversaries into targeting it instead of its mother ship.

From The Wall Street Journal ● Jan. 7, 2026

Crazy Horse and his decoys had carried out their plan.

From "In the Footsteps of Crazy Horse" by Joseph Marshall III

I sent him on a long scavenger hunt, then decoyed him in for a backhand drop and flicked it crosscourt into open space.

From The New Yorker ● Jan. 18, 2016

But then: "The tempter came, like the serpent of Eden, and decoyed them with the majic word of 'freedom.'"

From Time ● Apr. 7, 2011

Minister of State Louis Jac-quinot and Minister for the Sahara Max Lejeune had been decoyed from the general's side and confined in an isolated office under temporary guard.

From Time Magazine Archive

Most had been decoyed into a false security by an advance text of Truman's speech sent out at 11 a.m. which said not a word about his intentions.

From Time Magazine Archive

She had been decoyed to Rio Frio for some purpose.

From The Coast of Adventure by Harold Bindloss

Duplicitous collectors have created a thriving ecosystem of stockpiling, hiding, and decoying that makes it well-nigh impossible to find a scooter in need of charging.

From Slate ● May 22, 2018

This is especially true when you're rattling, calling, or decoying big game.

From Time Magazine Archive

Instead, he concentrates on controlling the boards, decoying enemy defenders, setting up teammates for open shots.

From Time Magazine Archive

And more recently, at Thanksgiving, after I made a queen-high straight on the turn and raked in all the remaining chips, the wind wound up wrong for decoying geese at our favorite blind.

From Time Magazine Archive

Her gentle efforts to guide the hand of destiny, by decoying her master with fertile tricks or by reticent considerations these had not bean strong enough to be recognized in the despotism of fife.

From "The Once and Future King" by T. H. White

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