war machine vs sniper rifle

war machine and sniper rifle both are nouns.

Word	Noun	Adjective	Verb	Adverb
war machine	Yes	No	No	No
sniper rifle	Yes	No	No	No

war machine (noun)	sniper rifle (noun)
the military forces of a nation	an extremely powerful rifle developed for the military; capable of destroying light armored vehicles and aircraft more than a mile away