revel vs debauchery

revel and debauchery both are nouns.

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

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

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

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