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Synonyms

double agent

American  

noun

  1. a person who spies on a country while pretending to spy for it.

  2. a spy in the service of two rival countries, companies, etc.


double agent British  

noun

  1. a spy employed by two mutually antagonistic countries, companies, 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

Etymology

Origin of double agent

First recorded in 1930–35

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.

In 2018, the UK said Russian double agent Sergei Skripal was poisoned with a Novichok nerve agent in the British cathedral city of Salisbury.

From Barron's • Mar. 30, 2026

Think of Mike Buckley as a kind of double agent.

From Los Angeles Times • Feb. 2, 2026

His KGB contact, who believes him to be a double agent, raises the stakes by asking him for information on Faith—though she has encouraged Gabriel to accept Soviet payments to dupe the Russians.

From The Wall Street Journal • Nov. 12, 2025

He also claimed to have fed Lamar "false" information through a double agent.

From BBC • Jan. 15, 2025

Could his spy have been a double agent, working for Balekin as well as Madoc?

From "The Cruel Prince" by Holly Black

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