English Reference
noun · verb

trooper

n. · v.
US /ˈtɹupɝ/ UK /tɹˈuːpɐ/ troop·er UK spelling troopers

  1. 01 B2 Upper Intermediate Informal

    n.someone who continues to work hard or stay positive even when things are difficult or they feel unwell.

    n.a person who stoically endures adversity or continues to perform a task despite hardship. Often used as a figurative extension of the military sense.

    Simple

    Even though he had a bad cold, he was a real trooper and finished the project.

    In context

    Despite the grueling schedule and the lack of resources, the lead researcher proved to be a real trooper, maintaining team morale until the deadline.

    Pitfall
    She was a real trouper during the long hike. She was a real trooper during the long hike.

    While 'trouper' refers to a reliable member of a theater group, 'trooper' is the standard spelling for someone showing physical or mental resilience, though the two are often confused.

    fighterstayer
    quitter
  2. 02 B2 Upper Intermediate Military

    n.a soldier, especially one who is in a unit that uses tanks or horses.

    n.a soldier of private rank in a cavalry or armored unit; more broadly, any member of a military troop.

    Simple

    The young trooper stood at attention as the commander walked past.

    In context

    The regiment consisted of seasoned troopers who had served in armored divisions across multiple international deployments.

    soldiercavalryman
  3. 03 B2 Upper Intermediate American English Law

    n.a member of a state police force, especially one who patrols highways.

    n.a state police officer, typically one tasked with patrolling highways and enforcing traffic laws.

    Simple

    A state trooper pulled the car over for driving too fast on the highway.

    In context

    The trooper requested the driver's license and registration before explaining the hazards of speeding in such heavy rain.

    highway patrolmanofficer
  4. 04 C1 Advanced Informal

    v.to keep working at a difficult or boring job without complaining.

    v.to work steadily and stoically at an unpleasant or demanding task.

    Simple

    We just had to trooper on until the busy season was finally over.

    In context

    The staff had to trooper through the weekend to ensure the software migration was completed before the Monday morning rush.

    Usage

    often used with 'on' as in 'to trooper on'

    plodsoldier on

After a few hours, nine organizers, including Walker, were arrested by state troopers.

The Guardian· 5 Sept 2026

From troop + -er, from French troupe. The sense of “one who endures adversity” comes from trouper (“member of an acting troupe”) but through assimilation with the sense of “soldier” has come to be usually spelled “trooper”.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin French troupe
Level B2 · Upper Intermediate
Frequency Frequent
Updated