1. A time limit, as for payment of a debt or completion of an assignment.
2. A boundary line in a prison that prisoners can cross only at the risk of being shot.
tr.v. dead·lined, dead·lin·ing, dead·lines
To govern by setting a time limit: "He was never going to be deadlined by a day, or even a month" (New Yorker).
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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