trooper
//ˈtruːpər//
Noun
trooperSingular
troopersPlural
1
A soldier in a cavalry unit or an armored unit.
The trooper mounted his horse and prepared for the cavalry charge.
2
A state police officer, especially in the United States.
The trooper pulled over the speeding car on the highway.
3
A reliable, hardworking, and uncomplaining person.
She's a real trooper—she never complains even when the work is tough.