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 Dodge became disabled, and the troopers arrested the driver. — Harriet Ramos, Fort Worth Star-Telegram, 1 July 2026

King was photographed wearing lei about two weeks after the event known as Bloody Sunday when state troopers violently attacked Civil Rights marchers on the Edmund Pettus Bridge in Selma on March 7, 1965. — ABC News, 30 June 2026

Truelove showed the trooper a sheriff's office badge and identification card, the release says. — Arkansas Online, 30 June 2026

Blue Hills Observatory Massachusetts State Police said Department of Conservation & Recreation (DCR) staff contacted troopers on Tuesday to report the vandalism. — Neal Riley, CBS News, 30 June 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