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Synonyms

trooper

American  
[troo-per] / ˈtru pər /

noun

  1. a state trooper.

  2. a mounted police officer; a police officer on horseback.

  3. a soldier in a cavalry that uses horses.

  4. null trouper a persevering, dependable person who works hard or who bravely endures adversity.

    He's a real trooper, even when the going gets tough.

  5. a cavalry horse.

  6. Chiefly British. a troopship.

trooper British  
/ ˈtruːpə /

noun

  1. a soldier in a cavalry regiment

  2. a mounted policeman

  3. a state policeman

  4. a cavalry horse

  5. informal a troopship

"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
trooper Idioms  

  1. see swear like a trooper.

Etymology

Origin of trooper

First recorded in 1630–40; troop + -er 1

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.

In one instance witnessed by a Journal reporter in July, ICE officers in Lake Worth, Fla., snapped pictures of two Guatemalan men whom a state trooper had just stopped.

From The Wall Street Journal • Jan. 5, 2026

A Tennessee Highway Patrol trooper on a motorcycle pulled her over anyway.

From Salon • Nov. 4, 2025

And he assigned a state trooper to escort them.

From Slate • Aug. 20, 2025

A state trooper pulled over the suspect's car on Terminal Drive after receiving a registration plate reader alert, Lexington Police Chief Lawrence Weathers told a news conference.

From BBC • Jul. 13, 2025

They “soon began to droop their heads and wouldn’t shake themselves like they normally did,” British trooper Ben Clouting remembered.

From "The War to End All Wars: World War I" by Russell Freedman

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.