war machine vs barrack

war machine and barrack both are nouns.

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

war machine (noun)	barrack (noun)
the military forces of a nation	a building or group of buildings used to house military personnel

war machine (verb)	barrack (verb)
	laugh at with contempt and derision
	spur on or encourage especially by cheers and shouts
	lodge in barracks