Definition of deadline noun from the Oxford Advanced American Dictionary

 

deadline

 noun
noun
NAmE//ˈdɛdlaɪn//
 
deadline (for something)
 
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a point in time by which something must be done I prefer to work under a deadline. a reporter on a deadline (= who has work that must be finished by a certain time) The deadline for applications is April 30. the January 15 deadline set by the United Nations The project has a tight deadline (= it must be finished very soon).
See the Oxford Advanced Learner's Dictionary entry: deadline