military machine vs flyover

military machine and flyover both are nouns.

Word	Noun	Adjective	Verb	Adverb
military machine	Yes	No	No	No
flyover	Yes	No	No	No

military machine (noun)	flyover (noun)
the military forces of a nation	a flight at a low altitude (usually of military aircraft) over spectators on the ground
	bridge formed by the upper level of a crossing of two highways at different levels