Definify.com
Webster 1913 Edition
Trooper
Troop′er
,Noun.
 1. 
A soldier in a body of cavalry; a cavalryman; also, the horse of a cavalryman. 
Webster 1828 Edition
Trooper
TROOP'ER
,Noun.
  Definition 2025
trooper
trooper
English
Noun
trooper (plural troopers)
- (military) A soldier of private rank in cavalry or armour. Abbreviated Tpr.
 - A cavalry horse; charger.
 - A soldier.
 - (Britain) A troopship.
 - (US) A state trooper.
 - (Australia) A mounted policeman.
 -  One who endures adversity or hardship with an attitude of stoicism and persistence.
- He was a real trooper about taking care of the kids for the weekend.
 
 
Synonyms
- (military): cavalryman, horse soldier, crewman, armoured soldier, armored soldier
 - (military): zipperhead (Canadian military slang)
 - (person able to endure hardship): survivor, tough cookie
 
Derived terms
Related terms
Translations
References
- “trooper” in the Canadian Oxford Dictionary, Second Edition, Oxford University Press, 2004.
 - “troop” in Douglas Harper, Online Etymology Dictionary (2001).
 - “troupe” in Douglas Harper, Online Etymology Dictionary (2001).