slide down vs founder

slide down is not a noun while founder is a noun.

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

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

Other hypernyms of slide down include break, cave in, collapse, fall in, give, give way.

slide down (noun)	founder (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

slide down (verb)	founder (verb)
fall or sink heavily	break down, literally or metaphorically
	sink below the surface
	stumble and nearly fall
	fail utterly; collapse