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

Now the G-men head down there to collar Massachusetts cops — sheriffs and crooked state troopers. —Howie Carr, Boston Herald, 10 Aug. 2025

The Arizona Department of Public Safety confirmed state troopers were investigating the crash near milepost marker 150. —Rey Covarrubias Jr, AZCentral.com, 10 Aug. 2025

In 2003, Texas Republicans also tried to redraw maps three years after Census data was released, prompting state Democrats to retreat to a Holiday Inn in Oklahoma, just over the state line from Texas and out of reach of troopers who could force them to return. —Rick Jervis, USA Today, 10 Aug. 2025

The warrant held by troopers charged him with second-degree threatening and second-degree breach of peace. —Justin Muszynski, Hartford Courant, 7 Aug. 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