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counterespionage

American  
[koun-ter-es-pee-uh-nahzh, -nij] / ˌkaʊn tərˈɛs pi əˌnɑʒ, -nɪdʒ /

noun

  1. the detection and frustration of enemy espionage.


counterespionage British  
/ ˌkaʊntərˈɛspɪəˌnɑːʒ /

noun

  1. activities designed to detect and counteract enemy espionage

"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 counterespionage

First recorded in 1895–1900; counter- + espionage

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 employee filed the complaint with the division director, Robert Turner, a 22-year veteran of the bureau who previously held roles in counterterrorism and counterespionage.

From Salon Nov. 18, 2025

Instead, they had dumped him at the so-called Russia Squad in L.A., a counterespionage unit meant to combat Soviet spying.

From Los Angeles Times Apr. 23, 2025

U.S. officials say they also expect Yellen to raise concerns about the impact of China's new counterespionage law on U.S. firms, and to warn Beijing about the consequences of supplying lethal aid to Russia.

From Reuters Jul. 7, 2023

Under the law, foreign nationals also can be blocked from leaving the country during counterespionage investigations.

From Washington Times Jul. 5, 2023

During World War II, Bill Harvey fought his battles on the home front, leading counterespionage campaigns against the Abwehr, spies that Hitler sent across the Atlantic to sabotage the American war effort.

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

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