mustn't
AmericanUsage
See contraction.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Ciara Mary-Alice Thompson, who performs as CMAT, tells Newsbeat smaller venues mustn't be neglected.
From BBC • Mar. 2, 2026
I’m sad that I mustn’t climb tall ladders anymore, per an agreement with Karen.
From The Wall Street Journal • Dec. 4, 2025
But Oedipus’ strengths — the keenness of his mind, his heroic commitment to truth and transparency — mustn’t be overlooked.
From Los Angeles Times • Nov. 13, 2025
They mustn't be allowed to fail them for 30 more.
From BBC • Oct. 22, 2025
‘Upwards is the wrong way!' cried the BFG. ‘You mustn’t ever be having the bubbles going upwards!
From "The BFG" by Roald Dahl
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
