war machine vs captain

war machine and captain both are nouns.

Word	Noun	Adjective	Verb	Adverb
war machine	Yes	No	No	No
captain	Yes	No	Yes	No

war machine (noun)	captain (noun)
the military forces of a nation	a dining-room attendant who is in charge of the waiters and the seating of customers
	the pilot in charge of an airship
	the naval officer in command of a military ship
	an officer who is licensed to command a merchant ship
	a policeman in charge of a precinct
	an officer holding a rank below a major but above a lieutenant
	the leader of a group of people

war machine (verb)	captain (verb)
	be the captain of a sports team