officer vs police

officer and police both are nouns.

Word	Noun	Adjective	Verb	Adverb
officer	Yes	No	Yes	No
police	Yes	No	Yes	No

officer (noun)	police (noun)
a member of a police force	the force of policemen and officers
someone who is appointed or elected to an office and who holds a position of trust
any person in the armed services who holds a position of authority or command
a person authorized to serve in a position of authority on a vessel

officer (verb)	police (verb)
direct or command as an officer	maintain the security of by carrying out a patrol