founder vs go down

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

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

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

Other hypernyms of founder include go under, settle, sink.

founder (noun)	go down (noun)
a person who founds or establishes some institution
a worker who makes metal castings
inflammation of the laminated tissue that attaches the hoof to the foot of a horse

founder (verb)	go down (verb)
break down, literally or metaphorically	grow smaller
sink below the surface	stop operating
stumble and nearly fall	be defeated
fail utterly; collapse	be ingested
	go under
	disappear beyond the horizon
	move downward and lower, but not necessarily all the way
	be recorded or remembered