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

The announcement comes after weeks of uncertainty about whether state military forces would join a growing law-enforcement presence that already includes hundreds of state troopers and federal agents. —Robert Alexander, MSNBC Newsweek, 10 Oct. 2025

Two Pennsylvania State troopers are recovering and in stable condition after being hospitalized from a shootout and car chase, following a retail theft at a Dick's Sporting Goods store on Wednesday, authorities said in an update. —Mason Leath, ABC News, 9 Oct. 2025

Both troopers were then flown to Wellspan York Hospital for treatment. —Michael Dorgan, FOXNews.com, 9 Oct. 2025

In a March 5 update, the department said troopers, experts and recovery teams could not assess the slide area and were hoping for better weather. —Minyvonne Burke, NBC news, 8 Oct. 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