war machine vs armored combat vehicle

war machine and armored combat vehicle both are nouns.

Word	Noun	Adjective	Verb	Adverb
war machine	Yes	No	No	No
armored combat vehicle	Yes	No	No	No

war machine (noun)	armored combat vehicle (noun)
the military forces of a nation	an enclosed armored military vehicle; has a cannon and moves on caterpillar treads