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 of trooper

• soldier
• warrior
• fighter

Examples of trooper in a Sentence

a moving Memorial Day service honoring our fallen troopers

Recent Examples on the Web

The tubers were rescued Friday amid dense woods and thick ground cover by two state troopers and three Michigan Department of Natural Resources conservation officers. — Dennis Romero, NBC news, 12 Aug. 2026

During the incident, two bystanders -- including a man who is a former police officer and former Idaho State trooper -- confronted the gunman, which police said helped stop the shooting. — Meredith Deliso, ABC News, 11 Aug. 2026

Records from that time indicated state troopers found Farinacci sitting on a park bench, out of breath, the affidavit reads. — Cindy Von Quednow, CNN Money, 10 Aug. 2026

The troopers stopped the vehicle at the intersection of South Harrison Road and West Houghton Lake Drive, and the man was arrested, the agency said. — Nicholas Lentz, CBS News, 10 Aug. 2026

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