counterterrorism

noun

coun·​ter·​ter·​ror·​ism ˌkau̇n-tər-ˈter-ər-ˌi-zəm How to pronounce counterterrorism (audio)
variants or counter-terrorism
: measures designed to combat or prevent terrorism
an expert in counterterrorism
often used before another noun
a local counterterrorism council
new counter-terrorism policies/measures

Examples of counterterrorism 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.
Post-9/11, aggressive counterterrorism fractured those centralized networks. Anne Neuberger, The Atlantic, 3 July 2026 The department will also deploy counterterrorism resources, explosive detection K-9s, bomb squad personnel and heavy weapons teams, along with plain clothes officers and a harbor unit for the waterways. Anthony Izaguirre, Fortune, 2 July 2026 The center brings together counterterrorism, cyber, counterintelligence and financial investigators and specialists from the Treasury Department and IRS to trace funding streams, identify criminal actors and build prosecutable cases. Asra Q. Nomani , Morgan Phillips, FOXNews.com, 2 July 2026 The department will also deploy counterterrorism resources, explosive detection K-9s, bomb squad personnel and heavy weapons teams, along with plain clothes officers and a harbor unit for the waterways. ABC News, 1 July 2026 See All Example Sentences for counterterrorism

Word History

First Known Use

1864, in the meaning defined above

Time Traveler
The first known use of counterterrorism was in 1864

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Cite this Entry

“Counterterrorism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/counterterrorism. Accessed 7 Jul. 2026.

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