This is the 117th most frequent Finnish word.
poliisi
Police.
Here, 'poliisi' is used singularly to reference the entire police force or a specific police officer.
Poliisi tutkii rikospaikkaa.
The police are investigating the crime scene.
Here, 'poliisi' is used in a general nominative form to discuss the concept of police as an institution.
Poliisi on yhteiskunnan tärkeä viranomainen.
The police is an important authority in society.
In this sentence, 'poliisi' is used in the object form to indicate the entity being called.