Definition of apocalypse noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//əˈpɒkəlɪps//
    ; NAmE NAmE//əˈpɑːkəlɪps//
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  1. 1[singular, uncountable] the destruction of the world Civilization is on the brink of apocalypse.
  2. 2 the Apocalypse [singular] the end of the world, as described in the Bible
  3. 3[singular] a situation causing very serious damage and destruction an environmental apocalypse
  4. Word OriginOld English, via Old French and ecclesiastical Latin from Greek apokalupsis, from apokaluptein ‘uncover, reveal’, from apo- ‘un-’ + kaluptein ‘to cover’.
See the Oxford Advanced American Dictionary entry: apocalypse