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
Recent Examples on the Web
Dennehy is a Marine veteran who joined the bureau in 2002 in the aftermath of 9/11 and worked on counterintelligence cases in New York.
—
Ashley Oliver, Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government, 4 Mar. 2025
This deviation from past practice has created a new kind of counterintelligence predicament, officials and experts have told me.
—Shane Harris, The Atlantic, 12 Feb. 2025
Maybe there is an inadvertent or malicious leak that causes a major counterintelligence breakdown.
—Anna Mulrine Grobe, The Christian Science Monitor, 12 Feb. 2025
Memos authored by House Republicans and Democrats, which have been declassified, showed that information about Papadopoulos’ contacts with Russian intermediaries triggered the FBI’s counterintelligence investigation in July 2016 of potential coordination between Russia and the Trump campaign.
—Kori Rumore, Chicago Tribune, 11 Feb. 2025
See All Example Sentences for counterintelligence
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.
Ashley Oliver, Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government, 4 Mar. 2025
This deviation from past practice has created a new kind of counterintelligence predicament, officials and experts have told me.
—Shane Harris, The Atlantic, 12 Feb. 2025
Maybe there is an inadvertent or malicious leak that causes a major counterintelligence breakdown.
—Anna Mulrine Grobe, The Christian Science Monitor, 12 Feb. 2025
Memos authored by House Republicans and Democrats, which have been declassified, showed that information about Papadopoulos’ contacts with Russian intermediaries triggered the FBI’s counterintelligence investigation in July 2016 of potential coordination between Russia and the Trump campaign.
—Kori Rumore, Chicago Tribune, 11 Feb. 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 14 Mar. 2025.
Copy CitationKids Definition
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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share