This is the 8799th most frequent Russian word.
полиция
Police.
Here, 'полиция' refers to the collective police force engaging in patrolling duties.
Полиция патрулирует улицы города.
The police patrols the city streets.
In this sentence, 'полиция' denotes the institution or organization where one is employed.
Я работаю в полиции.
I work in the police.
Here, 'полиция' represents the police as an entity summoned to provide assistance.