sidesplitter vs jest

sidesplitter and jest both are nouns.

Word	Noun	Adjective	Verb	Adverb
sidesplitter	Yes	No	No	No
jest	Yes	No	Yes	No

As nouns, jest is a hypernym of sidesplitter; that is, jest is a word with a broader meaning than sidesplitter:

Other hypernyms of sidesplitter include gag, jape, joke, laugh.

sidesplitter (noun)	jest (noun)
a joke that seems extremely funny	activity characterized by good humor
	a humorous anecdote or remark intended to provoke laughter

sidesplitter (verb)	jest (verb)
	act in a funny or teasing way
	tell a joke; speak humorously