The Collaborative International Dictionary
Trooper \Troop"er\, n.
A soldier in a body of cavalry; a cavalryman; also, the horse of a cavalryman.
A state police officer; -- also called state trooper.
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A mounted policeman. [Australia]
Note: The black troopers of Queensland are a regiment of aboriginal police, employed chiefly for dispersing wild aborigines who encroach on sheep runs.
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Trouper.
like a trooper, with energy, endurance, or enthusiasm; as, to work like a trooper.
Usage examples of "like a trooper".
He hadn't flown a ship like the Sorry before, and she wobbled like a trooper on leave.
But Smith sounded more like a trooper in a hole, repeating the High Command’.
Quick, light footsteps sounded from the corridor, and Miles rounded the doorjamb like a trooper swinging himself through a shuttle hatch.
Doc was last, his ancient knee boots slipping and sliding in the sand, cursing like a trooper as he struggled to unholster the Le Mat while on the run.