Other forms: riots
A riot is a violent outburst by an angry crowd. A riot broke out, riot police, read the riot act.
In English law a riot has a legal definition involving a number of people using or threatening unlawful violence together. Read the riot act is literal in origin: an Act of 1714 required an official to read a proclamation ordering a crowd to disperse. A riot of colour is a cheerful figurative use.
1nounriotA violent outburst by an angry crowd.
“The protest turned into a riot, with shop windows smashed and cars set on fire.”
riot is a disturbance.
Old French riote means a quarrel or dispute. Its own origin is uncertain.
Latin
rugio — to roar
Old French
riote — debate
Middle English
riot — debauched living, dissipation
English, today
riot
Built from
From Middle English riot (“debauched living, dissipation”), from Old French riote (“debate”), from rioter (“to quarrel”), perhaps related to riboter or from Latin rugio (“to roar”). Compare French riotte and Occitan riòta.
Etymology from Wiktionary, CC BY-SA