aviation vs pass over

aviation is a noun but pass over is not a noun.

Word	Noun	Adjective	Verb	Adverb
aviation	Yes	No	No	No
pass over	No	No	Yes	No

aviation (noun)	pass over (noun)
travel via aircraft
the art of operating aircraft
the aggregation of a country's military aircraft
the operation of aircraft to provide transportation

aviation (verb)	pass over (verb)
	bypass
	rub with a circular motion
	travel across or pass over
	make a passage or journey from one place to another
	fly over