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.
"Because we mustn't miss out -- especially us, as we're in our final year," he said.
From Barron's ● Oct. 16, 2026
Though the AI landscape is nascent and mustn’t be dismissed, “we see numerous reasons why the impact on European telecoms should be contained,” the analysts say.
From The Wall Street Journal ● Oct. 9, 2026
“The player mustn’t move, bend or break any growing or attached natural object,” Moir said.
From Los Angeles Times ● Jul. 17, 2026
But "we mustn't give in to this siren song," warned Bernard Jullien, an automotive industry specialist at the University of Bordeaux.
From Barron's ● May 8, 2026
“Grandpa and Lena and Dale all know that living here is risky. I’m sure they’re fine, but if they aren’t, you mustn’t blame yourself.”
From "Fablehaven" by Brandon Mull
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
