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.
I’m sad that I mustn’t climb tall ladders anymore, per an agreement with Karen.
From The Wall Street Journal • Dec. 4, 2025
One is: We mustn’t ever get into a world where it’s got to be a genocide before we care about it.
From Slate • Nov. 20, 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
"Economic selfishness is on the rise globally and we mustn't sit and cry about our difficulties, we must rise above and not allow others to hold us in their clutches."
From BBC • Aug. 26, 2025
That the Stormbreakers mustn’t leave the plant and that he was coming up to London at once.
From "Stormbreaker" by Anthony Horowitz
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.
