mustn't (0 synonym found)

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mustnt

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Definition of mustn't:

(v) : (uncommon) must not (negative auxiliary); used to indicate that something is forbidden or, in a tag question, that something is not necessary.
Definition of mustn't:

(v) : (uncommon) must not (negative auxiliary); used to indicate that something is forbidden or, in a tag question, that something is not necessary.
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