aviation vs nosedive

aviation and nosedive both are nouns.

Word	Noun	Adjective	Verb	Adverb
aviation	Yes	No	No	No
nosedive	Yes	No	Yes	No

aviation (noun)	nosedive (noun)
travel via aircraft	a steep nose-down descent by an aircraft
the art of operating aircraft	a sudden sharp drop or rapid decline
the aggregation of a country's military aircraft
the operation of aircraft to provide transportation

aviation (verb)	nosedive (verb)
	plunge nose first; drop with the nose or front first, of aircraft