terrorist
Americannoun
-
a person, usually a member of a group, who uses or advocates terrorism.
-
a person who terrorizes or frightens others.
-
(formerly) a member of a political group in Russia aiming at the demoralization of the government by terror.
-
an agent or partisan of the revolutionary tribunal during the Reign of Terror in France.
adjective
noun
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.
Vocabulary lists containing terrorist
President Obama's Speech to the Nation about Terrorism
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
American Naturalization Test, List 3
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
Fear and Loathing in Cleveland: Trump's RNC Acceptance Speech
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
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.
Zeraati's employer, Iran International, had also been designated by the Iranian government as a "terrorist organisation", the jury heard.
From BBC • May 18, 2026
The LNA is capable of "protecting the borders from all attacks", he added, citing threats from "smugglers or terrorist groups currently moving through Mali, Niger and other countries in attempts to enter Libya".
From Barron's • May 17, 2026
"We have evidence that terrorist content and illegal hate speech is persisting on some of the largest social media sites," said Oliver Griffiths, Ofcom's online safety director.
From Barron's • May 15, 2026
The outbreak of war between the U.S. and Iran sparked fears across the region that Tehran or its proxies would unleash a wave of cross-border terrorist attacks.
From The Wall Street Journal • May 13, 2026
It was then that I remembered my aunt Angie, and that my father was telling anyone who would listen that she had put his name on a terrorist watch list.
From "Educated" by Tara Westover
![]()
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.