Simple past tense and past participle of riot.(verb)
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Use "rioted" in a sentence
"Do you know why those Republicans 'rioted' that day?"
"Asked why the Irish rioted against the temperance movement, one man fresh from a grog shop said, “in this land of liberty, they expected to do as they liked.”"
"Unlike French students who rioted over reductions in retirement benefits, Ryan observed, Look at what happened in the streets of America in the last two years."