verb (used without object)
verb (used with object)
- riolan's anastomosis,
- rion strait,
- riot act,
- riot gun,
- riot shield,
- riot squad,
- to act without control or restraint: The neighbors let their children run riot.
- to grow luxuriantly or abundantly: Crab grass is running riot in our lawn.
Origin of riot
Examples from the Web for riot
They made one last charge for the airport, and when the riot police blocked them again a melee ensued.
Riot police eventually converged from the flanks, hundreds at first, then hundreds more, with shields and batons.
The riot police advanced on the crowd and the crowd gave some ground but did not retreat.
A battalion of riot police armed with shotguns arrived on the scene.Honoring The Late John Doar, A Nearly Forgotten Hero Of The Civil Rights Era|Gary May|November 15, 2014|DAILY BEAST
On some days there have been more police water-cannon trucks and riot shields on show than tanks.
At this time there was a bad feeling among the prisoners, and they daily expected a riot.Travels Through North America, v. 1-2|Berhard Saxe-Weimar Eisenach
The death of Amber was as nothing to the death of Chitor—a body whence the life had been driven by riot and the sword.From Sea to Sea|Rudyard Kipling
Rose vines, clambering at will over the picturesque old dwelling, were a riot of colors.Sisters|Grace May North
Meanwhile round the hall of the diet a riot had broken out; the soldiers intervened and blood was shed.
On this memorable day of the riot his arms were not folded on his chest.Nostromo: A Tale of the Seaboard|Joseph Conrad
- a disturbance made by an unruly mob or (in law) three or more persons; tumult or uproar
- (as modifier)a riot gun; riot police; a riot shield
- to behave wildly and without restraint
- (of plants) to grow rankly or profusely
Word Origin for riot
c.1200, "debauchery, extravagance, wanton living," from Old French riote (12c.) "dispute, quarrel, (tedious) talk, chattering, argument, domestic strife," also a euphemism for "sexual intercourse," of uncertain origin. Cf. Medieval Latin riota "quarrel, dispute, uproar, riot." Perhaps from Latin rugire "to roar." Meaning "public disturbance" is first recorded late 14c. Meaning "something spectacularly successful" first recorded 1909 in theater slang.
Run riot is first recorded 1520s, a metaphoric extension from Middle English meaning in reference to hounds following the wrong scent. The Riot Act, part of which must be read to a mob before active measures can be taken, was passed 1714 (1 Geo. I, st.2, c.5). Riot girl and alternative form riot grrl first recorded 1992.
late 14c., "behave in a dissolute manner, engage in loose revelry," from Old French rioter "chatter, dispute, quarrel," from riote (see riot (n.)). Meaning "take part in a public disturbance" is from 1755. Related: Rioted; rioting.
see read the riot act; run amok (riot).