ridicule vs debunk

ridicule is a noun but debunk is not a noun.

Word	Noun	Adjective	Verb	Adverb
ridicule	Yes	No	Yes	No
debunk	No	No	Yes	No

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

ridicule: subject to laughter or ridicule
debunk: expose while ridiculing; especially of pretentious or false claims and ideas

Other hyponyms of ridicule include tease, lampoon, satirise, satirize, expose, stultify.

ridicule (noun)	debunk (noun)
the act of deriding or treating with contempt
language or behavior intended to mock or humiliate

ridicule (verb)	debunk (verb)
subject to laughter or ridicule	expose while ridiculing; especially of pretentious or false claims and ideas