coun·​ter·​in·​tel·​li·​gence ˌkau̇n-tər-in-ˈte-lə-jən(t)s How to pronounce counterintelligence (audio)
: organized activity of an intelligence service designed to block an enemy's sources of information, to deceive the enemy, to prevent sabotage, and to gather political and military information

Examples of counterintelligence in a Sentence

Recent Examples on the Web Chris Simmons, a former chief of a counterintelligence research branch on the Western Hemisphere in the U.S. Defense Intelligence Agency, told the Herald that China has been jointly operating the base with Cuban spy agencies since 1992. Nora Gámez Torres, Miami Herald, 2 July 2024 Her expertise extends across multiple domains, including insider threat program development, corporate investigations, counterintelligence operations, cybersecurity, and surveillance. Kody Boye, USA TODAY, 6 June 2024 In response, Russia’s security agencies are now placing a greater emphasis on counterintelligence activities. Andrei Soldatov, Foreign Affairs, 1 May 2024 And just as important, the former assistant director for counterintelligence wants law enforcement agents to stop treating survivors of trafficking as criminals, and instead offer help and support. Liam Quinn, Peoplemag, 31 May 2024 See all Example Sentences for counterintelligence 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'counterintelligence.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1940, in the meaning defined above

Time Traveler
The first known use of counterintelligence was in 1940

Dictionary Entries Near counterintelligence

Cite this Entry

“Counterintelligence.” Dictionary, Merriam-Webster, Accessed 18 Jul. 2024.

Kids Definition


coun·​ter·​in·​tel·​li·​gence ˌkau̇nt-ə-rin-ˈtel-ə-jən(t)s How to pronounce counterintelligence (audio)
: activities of an intelligence service meant to hide the truth from an enemy or to prevent the enemy from learning secret information

More from Merriam-Webster on counterintelligence

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