counterintelligence
noun
coun·ter·in·tel·li·gence
ˌkau̇n-tər-in-ˈte-lə-jən(t)s 
: 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
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Our counterintelligence operations remain focused, vigilant, and relentless.
—
Greg Wehner, FOXNews.com, 1 July 2025
But after this conflict, with a heightened sense of insecurity, Iran’s counterintelligence operatives will be on particularly high alert.
—Richard Nephew, Foreign Affairs, 26 June 2025
The timing has transformed what might have been a routine budget hearing into a debate over national security priorities, with lawmakers arguing that cuts to counterterrorism, counterintelligence and threat screening programs could leave the nation vulnerable.
—Adeola Adeosun, MSNBC Newsweek, 23 June 2025
Ernesto Borges Pérez, a former Cuban counterintelligence officer who served 27 years in prison after he was convicted of spying for the U.S., was released Thursday from the high-security Combinado del Este prison in Havana.
—Nora Gámez Torres, Miami Herald, 25 Apr. 2025
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Greg Wehner, FOXNews.com, 1 July 2025
But after this conflict, with a heightened sense of insecurity, Iran’s counterintelligence operatives will be on particularly high alert.
—Richard Nephew, Foreign Affairs, 26 June 2025
The timing has transformed what might have been a routine budget hearing into a debate over national security priorities, with lawmakers arguing that cuts to counterterrorism, counterintelligence and threat screening programs could leave the nation vulnerable.
—Adeola Adeosun, MSNBC Newsweek, 23 June 2025
Ernesto Borges Pérez, a former Cuban counterintelligence officer who served 27 years in prison after he was convicted of spying for the U.S., was released Thursday from the high-security Combinado del Este prison in Havana.
—Nora Gámez Torres, Miami Herald, 25 Apr. 2025
See All Example Sentences for counterintelligence
Cite this Entry
“Counterintelligence.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/counterintelligence. Accessed 9 Jul. 2025.
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counterintelligence
noun
coun·ter·in·tel·li·gence
ˌkau̇nt-ə-rin-ˈtel-ə-jən(t)s
: 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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