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Synonyms

terrorist

American  
[ter-er-ist] / ˈtɛr ər ɪst /

noun

  1. a person, usually a member of a group, who uses or advocates terrorism.

  2. a person who terrorizes or frightens others.

  3. (formerly) a member of a political group in Russia aiming at the demoralization of the government by terror.

  4. an agent or partisan of the revolutionary tribunal during the Reign of Terror in France.


adjective

  1. of, relating to, or characteristic of terrorism or terrorists.

    terrorist tactics.

terrorist British  
/ ˈtɛrərɪst /

noun

    1. a person who employs terror or terrorism, esp as a political weapon

    2. ( as modifier )

      terrorist tactics

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of terrorist

First recorded in 1785–95; terror + -ist; compare French terroriste

Explanation

Someone who uses violence, mayhem, and destruction — or the threat of those things — to coerce people or countries into taking a certain action is a terrorist. A terrorist may be motivated by religious fervor, politics, or just plain old-fashioned greed. Terrorist has at its root the word "terror," which comes from the Latin word terrorem, meaning great fear. Great fear is exactly what terrorists hope to create so they can manipulate the situation to their benefit. The label terrorist is a subjective one. To the British, the American colonists who destroyed shiploads of tea in Boston Harbor in 1773 were terrorists. To colonists, they were patriots and heroes.

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Vocabulary lists containing terrorist

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Since late summer 2025, the US has conducted dozens of airstrikes on boats originating from Latin America that it alleged were trafficking narcotics and belonged to terrorist organizations.

From Barron's • May 28, 2026

In July 2025 it was proscribed as a terrorist group.

From BBC • May 28, 2026

Longstanding U.S. and international sanctions block Iran from the global financial system in an effort to fight terrorist financing and nuclear-arms development.

From The Wall Street Journal • May 22, 2026

Michael Myers, a former fashion photographer, started Distillery 291 in Colorado Springs, Colo., after fleeing New York City in the wake of the 9/11 terrorist attacks.

From The Wall Street Journal • May 17, 2026

Also, each accused terrorist is considered an "enemy combatant" and denied some legal protection.

From Nazi Saboteurs by Samantha Seiple

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