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.
“You mustn’t worry about it too much, dear.”
From Literature
![]()
“Hadel, you mustn’t speak so of our sister. She only thought to remedy her mistake,” said Ida.
From Literature
![]()
"I thought it was wrong… I'd said we mustn't pay it, but we ended up paying it anyway," he told the BBC, about a claim that followed a visit by Andrew to the Middle East.
From BBC
I mustn’t lose my temper in front of my little brother.
From Literature
![]()
“And they do not love. How could they, when they mustn’t fear? Love has fear baked into it.”
From Literature
![]()
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.