must·n't
/ˈməsnt/
contraction
must not.
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The meaning of MUSTN'T is must not.
8 days ago · MUSTN'T meaning: 1. short form of must not: 2. short form of must not: . Learn more.
must not (negative auxiliary [1] ); used to indicate that something is forbidden or, in a tag question, that something is not necessary.
used as a contraction of must not. We mustn't forget the lessons that history has taught us. You mustn't say such things.
Mustn't is the usual spoken form of `must not.' Collins COBUILD ...
Jan 30, 2020 · “Must” or “must not” (never mustn't) in the imperative sense very rarely (ie “You must do your homework”). It is more commonly used to suppose something.
We can use must and mustn't to talk about rules and obligations. I must do my homework. We must wear our school uniform. You mustn't be late for class.
short form of must not: You mustn't let her know I'm coming. (Definition of mustn't from the Webster's Essential Mini Dictionary © Cambridge University Press)
Oct 23, 2017 · “Mustn't” is an abbreviation of “must not” and can be used in the same way as the long version, to denote something which is forbidden. “You ...