Definition of doomsday noun from the Oxford Advanced American Dictionary

 

doomsday

 noun
noun
NAmE//ˈdumzdeɪ//
 
[singular]
 
jump to other results
  • the last day of the world when Christians believe that everyone will be judged by God
  • Idioms
    till doomsday(informal)
     
    jump to other results
    a very long time; forever This job's going to take me till doomsday.
    See the Oxford Advanced Learner's Dictionary entry: doomsday