TROOPER

[noun] [C]A trooper is a soldier who belongs to the lowest rank in the part of an army that fights in strong military vehicles or on horses.Troopers in the American First Infantry Division boast that they have led the US army since the American Civil War.(US) A trooper is a police officer in one of the forces of the 50 political areas of the United States.Troopers are called out in emergencies or dangerous situations.Everyone had to walk through a metal detector and a dozen state troopers were deployed around the courtroom.Someone who swears like a trooper swears a lot.He was extremely drunk and swearing like a trooper by the time he'd finished the whisky.