Definition of apocalypse noun from the Oxford Advanced American Dictionary

     

    apocalypse

     noun
    noun
    NAmE//əˈpɑkəlɪps//
     
     
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  1. 1[singular, uncountable] the destruction of the world Civilization is on the brink of apocalypse.
  2. 2the 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
See the Oxford Advanced Learner's Dictionary entry: apocalypse