Definition of "riot"

noun:
- Wanton or unrestrained behavior; uproar; tumult.
  
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- The tumultuous disturbance of the public peace by an unlawful assembly of three or more persons in the execution of some private object.
  
  from Wiktionary, Creative Commons Attribution/Share-Alike License
- Excessive and expensive feasting; wild and loose festivity; revelry.
  
  from Wiktionary, Creative Commons Attribution/Share-Alike License
verb:
- To create or take part in a riot.
  
  from Wiktionary, Creative Commons Attribution/Share-Alike License