deadline
Americannoun
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the time by which something must be finished or submitted; the latest time for finishing something.
a five o'clock deadline.
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a line or limit that must not be passed.
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(formerly) a boundary around a military prison beyond which a prisoner could not venture without risk of being shot by the guards.
noun
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of deadline
Explanation
A deadline is a date or time when something must be finished. At work and school, most projects have deadlines. If you don’t get your paper in by the deadline, you won’t get a good grade. If you think missing a deadline and getting a low grade is bad, think about how this word came to be: It was a line that went around a prison and if a prisoner crossed it, he could be shot. Now that’s a deadline! A deadline sounds scary, and it does frighten a lot of people — if you don't get a paper in by the deadline, you could lose points or fail. But hey, you’ll live.
Vocabulary lists containing deadline
"LAFFF"
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Employment, List 1
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This Week in Words: Current Events Vocabulary for April 15–April 21, 2023
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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.
The White House can also extend the deadline for another 30 days, citing national security.
From BBC • Jun. 23, 2026
When he recently took his in-laws to get fitted for new hearing aids, he popped open his laptop and used a hot spot to send emails and edit video in time to meet a deadline.
From MarketWatch • Jun. 23, 2026
For now, the most striking takeaway is the White House’s 2028 deployment deadline, which is ahead of most company targets.
From Barron's • Jun. 22, 2026
Being able to record in their own studio allowed the pair to craft songs without feeling any pressure to meet a deadline.
From Los Angeles Times • Jun. 19, 2026
They knew I had to choose, and they had given me a deadline.
From "Courage to Soar" by Simone Biles
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.
