Simple Definition of deadline
: a date or time when something must be finished : the last day, hour, or minute that something will be accepted
Full Definition of deadline
1 : a line drawn within or around a prison that a prisoner passes at the risk of being shot
2 a : a date or time before which something must be done b : the time after which copy is not accepted for a particular issue of a publication
: with the requirement of meeting a deadline <working on deadline>
Examples of deadline in a sentence
She worked on her composition right up until the deadline.
We had to hurry to meet the deadline.
The project was completed a week past its deadline.
The deadline for submitting college applications is April 19th.
They're working under a deadline.
First Known Use of deadline
DEADLINE Defined for Kids
Definition of deadline for Students
: a date or time by which something must be done
Seen and Heard
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