Meaning of the word "read (someone) the riot act" in English

What does "read (someone) the riot act" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

read (someone) the riot act

US /riːd ðə ˈraɪət ækt/
UK /riːd ðə ˈraɪət ækt/
"read (someone) the riot act" picture

Idiom

1.

to reprimand someone severely and warn them to improve their behavior

Example:
After he broke curfew again, his parents decided to read him the riot act.
The manager had to read the team the riot act after their poor performance.
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