Quick definitions from WordNet (riot)
▸ noun: a public act of violence by an unruly mob
▸ noun: a state of disorder involving group violence
▸ noun: a wild gathering involving excessive drinking and promiscuity
▸ noun: a joke that seems extremely funny
▸ verb: take part in a riot; disturb the public peace by engaging in a riot ("Students were rioting everywhere in 1968")
▸ verb: engage in boisterous, drunken merry-making
▸ Also see riot
▸ noun: a public act of violence by an unruly mob
▸ noun: a state of disorder involving group violence
▸ noun: a wild gathering involving excessive drinking and promiscuity
▸ noun: a joke that seems extremely funny
▸ verb: take part in a riot; disturb the public peace by engaging in a riot ("Students were rioting everywhere in 1968")
▸ verb: engage in boisterous, drunken merry-making
▸ Also see riot