founder vs slump

founder and slump both are nouns.

Word	Noun	Adjective	Verb	Adverb
founder	Yes	No	Yes	No
slump	Yes	No	Yes	No

As verbs, slump is a hyponym of founder; that is, slump is a word with a more specific, narrower meaning than founder:

Other hyponyms of founder include go off, implode, buckle, crumple, flop, break, sink, slide down.

founder (noun)	slump (noun)
a person who founds or establishes some institution	a noticeable deterioration in performance or quality
a worker who makes metal castings	a long-term economic state characterized by unemployment and low prices and low levels of trade and investment
inflammation of the laminated tissue that attaches the hoof to the foot of a horse

founder (verb)	slump (verb)
break down, literally or metaphorically	fall heavily or suddenly; decline markedly
sink below the surface	fall or sink heavily
stumble and nearly fall	assume a drooping posture or carriage
fail utterly; collapse	fall in value