ridicule vs jest at

ridicule is a noun but jest at is not a noun.

Word	Noun	Adjective	Verb	Adverb
ridicule	Yes	No	Yes	No
jest at	No	No	Yes	No

As verbs, ridicule and jest at are synonyms defined as:

Other synonyms of ridicule include blackguard, guy, laugh at, make fun, poke fun, rib, roast.

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

ridicule (verb)	jest at (verb)
subject to laughter or ridicule	subject to laughter or ridicule