troopertroop‧er /ˈtruːpə $ -ər/ noun 
Examples
ExamplesEXAMPLES FROM THE CORPUS
Thesaurus- And where was he going 90 minutes after the bombing when stopped by an Oklahoma trooper on Interstate 35 near Perry?
- For decades these latter had been infiltrating the administration and even the troopers.
- In 1994, a Maryland State trooper saw a car speeding down Interstate 95.
- We dropped off the troopers and picked up wounded.
THESAURUSpeople in the police► police officer
Collocations (also officer) a member of the police. In British English, police officer is used especially in more formal contexts, for example in news reports. In everyday English, British people still usually say policeman or policewoman: · a senior police officer· He was sentenced to life in prison for killing a police officer.· He is the officer in charge of the case.· Officer Fayard (=in the US ‘Officer’ is used in the title of police officers)
► policeman a man who is a member of the police: · an off-duty policeman· He’s a former policeman.
► policewoman a woman who is a member of the police: · The girl, accompanied by a policewoman and two social workers, was seen in private by Sheriff George Crozier.
► PC/WPC abbreviation used in the job titles of British police officers. PC means ‘Police Constable’ and WPC means ‘Woman Police Constable’: · PC Keith Fletcher· WPC Susan Larkin
► detective a police officer whose job is to discover who is responsible for crimes: · Detectives are investigating the death of a baby boy.· Detective Inspector John Hartwell
► plain-clothes adjective a plain-clothes police officer wears ordinary clothes instead of a uniform: · Two plain-clothes police officers, acting as hotel security men, kept watch on him.
► constable a British police officer of the lowest rank: · a police constable· Constable Robin Cameron
► chief constable a senior police officer who is in charge of the police in a particular area in Britain: · the chief constable of North Yorkshire police
► cop informal a police officer: · You’d better call the cops.
► trooper a US police officer in a state police force: · a New Jersey state trooper
WORD SETS► Armyadjutant, nounarmoured, adjectivebarracks, nounbasic training, nounbatman, nounbattalion, nounbearskin, nounbillet, nounbillet, verbbombardier, nounbooty, nounbrigade, nounbrigadier, nounbrigadier-general, nouncadet, nouncanteen, nouncantonment, nouncapture, verbcavalry, nouncavalryman, nouncenturion, nouncharger, nounchevron, nounCol., colonel, nouncommand, nouncommando, nouncommissary, nouncompany, nouncontingent, nouncorps, noundesert, verbdeserter, noundesertion, noundetachment, noundetail, noundisengage, verbdishonourable discharge, noundivision, noundivisional, adjectivedog tag, noundraft, verbdragoon, noundrill, noundrill, verbdugout, nounencampment, nounexpeditionary force, nounfield marshal, nounfiring squad, nounfive star general, nounflank, nounfoot locker, nounforay, nounfour-star general, nounfusilier, noungarrison, noungarrison, verbGen., general, noungeneralship, nounGI, noungrenadier, nounground forces, noungrunt, nounguardsman, noungunner, nounhussar, nouninduct, verbinductee, nouninfantry, nouninfantryman, nounirregular, nounlance corporal, nounlegion, nounlegionary, nounlegionnaire, nounLieut, loot, nounLt., man-at-arms, nounmatériel, nounMC, nounmedic, nounmercenary, nounmess hall, nounMIA, nounM.O., nounmobilize, verbmotorized, adjectivemounted, adjectivemusketeer, nounmuster, nounnon-commissioned officer, nounobstacle course, nounparade, verbparade ground, nounparatrooper, nounparatroops, nounpennon, nounpicket, nounpicket, verbpip, nounplatoon, nounpoint man, nounposition, nounprivate, nounprivate soldier, nounPte, redcoat, nounregiment, nounregular, nounreservist, nounreveille, nounroute march, nounsapper, nounsarge, nounsignalman, nounsoldier, nounsoldiering, nounsoldierly, adjectivesoldier of fortune, nounsoldiery, nounsortie, nounsortie, verbspecial forces, nounsquad, nounsquaddy, nounstaff sergeant, nounstandard-bearer, nounstormtrooper, nounsubaltern, nounTerritorial Army, the, trench, nountroop, nountrooper, noun
COLLOCATIONS FROM THE CORPUSNOUN► state
Phrases· His bicycle was found close to the start of a forest trail. State troopers called off a search earlier this week.· Wallace finally deployed state troopers, who used shotguns and indiscriminate beating to suppress the blacks.· The four-day siege, in which 11 guards and 32 inmates were killed, ended with state troopers storming the prison.· Governor George Busbee sent state troopers to the town of 2, 100 people after the incident.· Clinton used a state trooper to lure her to a hotel room during a state-sponsored event in 1991.· About one hundred state troopers wearing bulletproof vests kept the groups well separated after a fistfight broke out in the afternoon.· Violanti, a former state trooper, is a professor of criminal justice at Rochester Institute of Technology.· Claiming their masks were ineffective against the gas employed by the marshals, the state troopers withdrew from the campus.
VERB► swear· Throwing on a dressing-gown and swearing like a trooper, you stumble to answer it.
PHRASES FROM THE ENTRY► swear like a trooper
1[countable] a soldier of the lowest rank in the part of the army that uses tanks or horses2[countable] a member of a state police force in the US3swear like a trooper old-fashioned to swear a lot- Throwing on a dressing-gown and swearing like a trooper, you stumble to answer it.