counterintelligence

noun

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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In a closed-door briefing to lawmakers, Hong Jang-won, first deputy director of South Korea’s National Intelligence Service, said Mr. Yoon called after imposing martial law and ordered him to help the defense counterintelligence unit to detain key politicians. Hyung-Jin Kim and Kim Tong-Hyung, The Christian Science Monitor, 6 Dec. 2024 In a closed-door briefing to lawmakers, Hong Jang-won, first deputy director of South Korea’s National Intelligence Service, said Yoon called after imposing martial law and ordered him to help the defense counterintelligence unit to detain key politicians. Hyung-Jin Kim and Kim Tong-Hyung, Los Angeles Times, 6 Dec. 2024 Peter Strzok: former deputy assistant director of the FBI's counterintelligence division who criticized Trump in private texts with Lisa Page. Josh Hammer, Newsweek, 2 Dec. 2024 He was detained in 2021, by the local bureau of China’s counterintelligence agency in the southeastern city of Suzhou after China had closed its borders and imposed tight domestic travel restrictions and social controls to fight the spread of COVID-19. Matthew Lee, Fortune, 28 Nov. 2024 See all Example Sentences for counterintelligence 

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.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/counterintelligence. Accessed 16 Dec. 2024.

Kids Definition

counterintelligence

noun
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

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