Definition, Meaning & Synonyms

mustn't

contraction
/ˈmʌsnt/
Definition
Mustn’t is a contraction of ‘must not.’ It indicates a prohibition or something that is not allowed.
Examples
  • You mustn’t smoke in here.
  • She said I mustn’t tell anyone her secret.
  • Guests mustn’t arrive after 10 PM.
Meaning
The word is used to express that something is forbidden or that one should not do something.
Synonyms
  • must not
  • cannot
  • should not