What part of speech is the word police?

The word "police" can be a few different parts of speech, depending on its context:

* Noun: This is the most common usage. It refers to the organized force responsible for enforcing the law and maintaining order. Example: "The police arrived at the scene."

* Verb: This is less common but still valid. It means to patrol or monitor a place or area. Example: "We need to police this section of the park."

* Adjective: This usage is even less common. It means related to the police or law enforcement. Example: "There's a police station on the next block."

So, the answer depends on how the word is used in the sentence.