trooper vs officer

trooper and officer both are nouns.

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

As nouns, officer is a hypernym of trooper; that is, officer is a word with a broader meaning than trooper:

Other hypernyms of trooper include police officer.

As nouns, officer is a hypernym of trooper; that is, officer is a word with a broader meaning than trooper:

Other hypernyms of trooper include police officer.

trooper (noun)	officer (noun)
a mounted police officer	a member of a police force
a soldier in a motorized army unit	someone who is appointed or elected to an office and who holds a position of trust
a state police officer	any person in the armed services who holds a position of authority or command
a soldier mounted on horseback	a person authorized to serve in a position of authority on a vessel

trooper (verb)	officer (verb)
	direct or command as an officer