Meaning of the word "lay down the law" in English

What does "lay down the law" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

lay down the law

US /leɪ daʊn ðə lɔː/
UK /leɪ daʊn ðə lɔː/
"lay down the law" picture

Idiom

1.

to tell people what they must do, without caring about their opinions

Example:
The new manager immediately laid down the law about punctuality.
My parents always lay down the law when it comes to my curfew.
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