Word.ws English Dictionary

musn't

/ˈmʌsnt/

musn't is the dated form of mustn't.

Meaning of mustn't

Verb

mustn't

  1. (uncommon) Must not (negative auxiliary); used to indicate that something is forbidden or, in a tag question, that something is not necessary.
    • You mustn't blame yourself for this tragedy.

Questions about musn't

What is musn't the dated form of?
Musn't is the dated form of mustn't.
How do you pronounce musn't?
Musn't is pronounced /ˈmʌsnt/.

Words near musn't in the dictionary

  1. muslins
  2. Musloid
  3. Musloids
  4. musmon
  5. musmons
  6. musn't
  7. musnad
  8. musnads
  9. musnud
  10. musnuds
  11. muso

Source and license

Adapted from Wiktionary: musn't (page history and authors); mustn't (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “musn't.” Word.ws, https://word.ws/musn%27t. Based on Wiktionary, CC BY-SA 4.0.