Other hyponyms of police officer include
bobby,
bull,
cop,
copper,
fuzz,
pig,
captain,
police captain,
police chief,
constable,
police constable,
detective,
investigator,
police detective,
tec,
inspector,
motorcycle cop,
motorcycle policeman,
speed cop,
police matron,
policewoman,
Mountie,
shoofly,
traffic cop,
trooper,
state trooper,
trooper,
policeman.