avalanche vs go down

avalanche is a noun but go down is not a noun.

Word	Noun	Adjective	Verb	Adverb
avalanche	Yes	No	Yes	No
go down	No	No	Yes	No

As verbs, go down is a hypernym of avalanche; that is, go down is a word with a broader meaning than avalanche:

Other hypernyms of avalanche include come down, descend, fall.

avalanche (noun)	go down (noun)
a slide of large masses of snow and ice and mud down a mountain
a sudden appearance of an overwhelming number of things

avalanche (verb)	go down (verb)
gather into a huge mass and roll down a mountain, of snow	grow smaller
	stop operating
	be defeated
	be ingested
	go under
	disappear beyond the horizon
	move downward and lower, but not necessarily all the way
	be recorded or remembered