armored car vs war machine

armored car and war machine both are nouns.

Word	Noun	Adjective	Verb	Adverb
armored car	Yes	No	No	No
war machine	Yes	No	No	No

armored car (noun)	war machine (noun)
a military combat vehicle on wheels with light armor (and usually a machine gun)	the military forces of a nation
an armor-plated truck with strong doors and locks used to transport money or valuables