trooper

noun

troop·​er ˈtrü-pər 

1

a(1)

: an enlisted cavalryman

(2)

: the horse of a cavalryman

b

: paratrooper

c

: soldier

2

a

: a mounted police officer

b

: a state police officer

3

: trouper sense 2

Synonyms

• soldier
• warrior
• fighter

Examples of trooper in a Sentence

a moving Memorial Day service honoring our fallen troopers

Recent Examples on the Web

But then, the state police were called in because the mall didn’t have enough security—that’s my understanding—so state troopers came in and shut it down. —Anna Moeslein, Glamour, 2 Oct. 2025

The cult hit comedy franchise Super Troopers revolves around the shenanigans of a group of Vermont state troopers who are slacker pranksters first and foremost. —Matt Grobar, Deadline, 2 Oct. 2025

During the operation, troopers encountered more than 500 people and turned 120 over to ICE, according to officials. —Christina Shaw, FOXNews.com, 1 Oct. 2025

Kehoe’s office did not clarify where, exactly, National Guard troopers would assist ICE in Missouri. —Kacen Bayless, Kansas City Star, 30 Sep. 2025

Word History

First Known Use

1640, in the meaning defined at sense 1a(1)

Phrases Containing trooper

• moss-trooper
• storm trooper

Rhymes for trooper

• grouper
• hooper
• keuper
• looper
• stupor
• super
• paratrooper

Kids Definition

trooper

noun

troop·​er ˈtrü-pər 

1

: a cavalry soldier

2

a

: a police officer who rides a horse

b

: a state police officer