bacchanalia vs orgy

bacchanalia and orgy both are nouns.

Word	Noun	Adjective	Verb	Adverb
bacchanalia	Yes	No	No	No
orgy	Yes	No	No	No

As nouns, bacchanalia and orgy are synonyms defined as:

bacchanalia and orgy: a wild gathering involving excessive drinking and promiscuity

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

bacchanalia (noun)	orgy (noun)
a wild gathering involving excessive drinking and promiscuity	secret rite in the cults of ancient Greek or Roman deities involving singing and dancing and drinking and sexual activity
	any act of immoderate indulgence
	a wild gathering involving excessive drinking and promiscuity