aviation vs bring down

aviation is a noun but bring down is not a noun.

Word	Noun	Adjective	Verb	Adverb
aviation	Yes	No	No	No
bring down	No	No	Yes	No

aviation (noun)	bring down (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)	bring down (verb)
	cut down on; make a reduction in
	impose something unpleasant
	cause to be enthusiastic
	cause to come to the ground
	move something or somebody to a lower position
	cause the downfall of; of rulers