police officer 
noun
A policeman or policewoman.He stated that he had not spoken to the police officers prior to the arrest of the Appellants....
- The police officers will also patrol the nearby villages of Steeton and Eastburn.
- What is wrong with having a distinction between police staff and police officers?
Synonyms
policeman, policewoman, officer of the law, law enforcement officer/agent, officer;
British constable;
North American patrolman, trooper, roundsman, peace officer;
Indian kotwal, jawan;
French gendarme
informal cop, jack, uniform
British informal copper, bobby, rozzer, busy, bizzy, plod, PC Plod
North American informal bear
Australian/New Zealand informal walloper, demon
French informal flic
informal, derogatory pig
informal, dated flatfoot, bogey, flattie, woodentop
archaic peeler, runner, bluebottle, finger