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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

One police officer, Evelyn Tardiff, has long served as a double agent within the mobster’s circle, and Armand has grown unsure of her loyalties, fearing that “he no longer knew whose side she was on.”

From The Wall Street Journal • Nov. 14, 2025

Framed as a confession by the child of a Frenchman and a Vietnamese woman, the narrator is a double agent with an unforgettable voice recalling Graham Greene and Vladimir Nabokov.

From Los Angeles Times • Apr. 14, 2025

"I really did feel a tremendous loyalty to MI6," the Soviet double agent said, but his over-ruling fealty was to "the other side".

From BBC • Jan. 14, 2025

The path of the double agent was lonely and perilous.

From "Spies: The Secret Showdown Between America and Russia" by Marc Favreau

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