警察, けいさつ
1. police
See 警察官, Abbreviation
2. police officer
See 警察署
3. police station
Noun, used as a suffix, Colloquialism
4. self-appointed enforcer (of a rule, standard, etc.), busybody, vigilante, gatekeeper
その場合には警察を呼びなさい。
を
Particle
1. indicates direct object of action
2. indicates subject of causative expression
3. indicates an area traversed
4. indicates time (period) over which action takes place
5. indicates point of departure or separation of action