This is the 11791st most frequent Swedish word.
polisbilar
Police cars.
Here, 'polisbilar' is used in a plural form to describe multiple vehicles associated with the police force.
Jag såg flera polisbilar köra snabbt förbi.
I saw several police cars driving quickly by.
In this sentence, 'polisbilar' is used as the subject of a general statement about their appearance in Sweden.
Polisbilar är målade i blått och vitt i Sverige.
Police cars are painted blue and white in Sweden.
Here, 'polisbilar' refers to a component of emergency response units cooperative effort.