riot vs drunken revelry

riot and drunken revelry both are nouns.

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

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

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

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

riot (noun)	drunken revelry (noun)
a public act of violence by an unruly mob	a wild gathering involving excessive drinking and promiscuity
a wild gathering involving excessive drinking and promiscuity
a joke that seems extremely funny
a state of disorder involving group violence

riot (verb)	drunken revelry (verb)
take part in a riot; disturb the public peace by engaging in a riot
engage in boisterous, drunken merrymaking