war machine vs mess

war machine and mess both are nouns.

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

war machine (noun)	mess (noun)
the military forces of a nation	a (large) military dining room where service personnel eat or relax
	a meal eaten in a mess hall by service personnel
	soft semiliquid food
	(often followed by `of') a large number or amount or extent
	a state of confusion and disorderliness
	informal terms for a difficult situation

war machine (verb)	mess (verb)
	make a mess of or create disorder in
	eat in a mess hall