must·n't
must·n't/ˈməsnt/
contraction
must not.
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The meaning of MUSTN'T is must not.
6 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 29, 2020 · It is more commonly used to suppose something (“It must be raining,” “He must be running late,” “They must not have finished their homework”). “ ...
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 ...