1ri·ot 
/ˈrajət/ noun
plural ri·ots /ˈrajət/ noun 1 [count] : a situation in which a large group of people behave in a violent and uncontrolled way
▪ The news about the election caused/started/sparked a riot in the city. ▪ a prison riot ▪ A lot of property was damaged in the recent riots. ▪ riot gear/police 2 [singular] : a place that is filled with something
▪ The field was a riot of wildflowers. [=the field was filled with many kinds of wildflowers] ▪ The woods are a riot of color in the autumn. 3 [singular] informal : someone or something that is very funny
▪ She's a riot. ▪ The movie was an absolute riot.
▪ The news about the election caused/started/sparked a riot in the city. ▪ a prison riot ▪ A lot of property was damaged in the recent riots. ▪ riot gear/police
▪ The field was a riot of wildflowers. [=the field was filled with many kinds of wildflowers] ▪ The woods are a riot of color in the autumn.
▪ She's a riot. ▪ The movie was an absolute riot.
read (someone) the riot act
: to speak in an angry and critical way to (someone who has done something wrong) : to tell (someone) that bad behavior will be severely punished if it continues
▪ His boss read him the riot act for making careless mistakes.
▪ His boss read him the riot act for making careless mistakes.
run riot
: to behave in a violent and uncontrolled way
▪ People were running riot in the streets. — often used figuratively ▪ Crazy thoughts were running riot through my head. ▪ The weeds have run riot over our poor garden. [=the weeds in our garden have grown quickly and have taken over the garden]
▪ People were running riot in the streets. — often used figuratively ▪ Crazy thoughts were running riot through my head. ▪ The weeds have run riot over our poor garden. [=the weeds in our garden have grown quickly and have taken over the garden]
