buckle vs founder

buckle and founder both are nouns.

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

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

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

buckle (noun)	founder (noun)
fastener that fastens together two ends of a belt or strap; often has loose prong	a person who founds or establishes some institution
a shape distorted by twisting or folding	a worker who makes metal castings
	inflammation of the laminated tissue that attaches the hoof to the foot of a horse

buckle (verb)	founder (verb)
bend out of shape, as under pressure or from heat	break down, literally or metaphorically
fasten with a buckle or buckles	sink below the surface
fold or collapse	stumble and nearly fall
	fail utterly; collapse