Definitionen
1.NounA soldier of private rank in cavalry or armor. .mw-parser-output .defdate{font-size:smaller}
2.NounA cavalry horse; a charger.
3.NounA soldier.
4.NounA troopship.
5.NounEllipsis of state trooper.
6.NounA mounted policeman.
7.NounMisspelling of trouper (“one who stoically endures adversity”) ."He was a real trooper about taking care of the kids for the weekend."
8.VerbTo work as a trooper.
9.VerbTo work steadily at an unpleasant job without complaint.