- Historical a line around a prison beyond which a prisoner could go only at the risk of being shot by a guard
- a boundary which it is forbidden to cross
- the latest time by which something must be done or completed: a deadline for payment, publication, etc.
If you have to have a report in by 5 PM or it is considered late, 5 PM is an example of a deadline.
- A time limit, as for payment of a debt or completion of an assignment.
- A boundary line in a prison that prisoners can cross only at the risk of being shot.
transitive verbdead·lined, dead·lin·ing, dead·lines
(third-person singular simple present deadlines, present participle deadlining, simple past and past participle deadlined)
The context of a due date originated in journalism, probably from an earlier usage in printing, representing a guideline marked on a plate for a printing press (inside which all content should appear). According to the Oxford English Dictionary, early usage refers simply to lines that do not move, such as one used in angling; slightly later American usage includes a boundary around a prison which prisoners must not cross.
- His abstract submission met the deadline.
- Taxpayers living in Maine, Maryland, Massachusetts, New Hampshire, New York, Vermont and the District of Columbia, have an April 18th filing deadline, because of a Massachusetts state holiday where the IRS houses a processing facility.
- Because there is no waiting period for marriages in Hawaii, couples can dock, arrange for their marriage license, enjoy a beautiful tropical ceremony, take photographs, and be back onboard the cruise ship before the sailing deadline.
- Filing a tax return late only requires mailing or electronically submitting the form or failing to include payment or bank account information for the IRS to automatically withdraw the amount of money owed to it by the deadline.
- For example, if you have a large task on your "A List" like: develop an advertising plan the best way to tackle such a long range project is to break it into manageable goals that work toward your deadline.