What does must not mean?

Definition

Marks that an action is prohibited by a rule or authority, rather than unnecessary or impossible.

Example sentences

• You must not eat here.🔊

  You must not eat here.

• You can't open that book.🔊

  You can't open that book.

• You mustn't park here.🔊

  You mustn't park here.

must not in other languages

• In Portuguese
• In French
• In Japanese