mustn't

[ muhs-uhnt ]

  1. contraction of must not.

usage note For mustn't

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use mustn't in a sentence

  • We must place him in a way to dominate everything else—a pedestal, or better still, a throne—no, no; he mustnt be sitting.

    The Woman Gives | Owen Johnson
  • Quite so, Kapitolina Markovna interrupted, but theres something we mustnt forget.

    Smoke | Turgenev Ivan Sergeevich
  • I am excited and rather overwrought to-night somehow, she said, and you mustnt indeed think that there is anything the matter.

    The Angel of Pain | E. F. Benson
  • You mustnt any of you forget that theres sewing to do, right now, warned Mrs. Bryan.

    Winona of the Camp Fire | Margaret Widdemer
  • Youre not looking well yourself, Mrs. Alexander; you mustnt take care of the children too hard.

    The Wayfarers | Mary Stewart Cutting