war machine vs flanker

war machine and flanker both are nouns.

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

war machine (noun)	flanker (noun)
the military forces of a nation	a soldier who is a member of a detachment assigned to guard the flanks of a military formation
	a back stationed wide of the scrimmage line; used as a pass receiver