revel vs bacchanalia

revel and bacchanalia both are nouns.

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

As nouns, bacchanalia is a hyponym of revel; that is, bacchanalia is a word with a more specific, narrower meaning than revel:

revel (noun)	bacchanalia (noun)
unrestrained merrymaking	a wild gathering involving excessive drinking and promiscuity

revel (verb)	bacchanalia (verb)
take delight in
celebrate noisily, often indulging in drinking; engage in uproarious festivities