sidesplitter vs wow

sidesplitter and wow both are nouns.

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

As nouns, sidesplitter and wow are synonyms defined as:

Other synonyms of sidesplitter include belly laugh, howler, riot, scream, thigh-slapper.

sidesplitter (noun)	wow (noun)
a joke that seems extremely funny	a joke that seems extremely funny

sidesplitter (verb)	wow (verb)
	impress greatly