debauchery vs drunken revelry

debauchery and drunken revelry both are nouns.

Word	Noun	Adjective	Verb	Adverb
debauchery	Yes	No	No	No
drunken revelry	Yes	No	No	No

As nouns, debauchery and drunken revelry are synonyms defined as:

debauchery and drunken revelry: a wild gathering involving excessive drinking and promiscuity

Other synonyms of debauchery include bacchanal, bacchanalia, debauch, orgy, riot, saturnalia.

debauchery (noun)	drunken revelry (noun)
a wild gathering involving excessive drinking and promiscuity	a wild gathering involving excessive drinking and promiscuity