Apocalypse

Noun

 * 1)  The end of life on earth or all.
 * 2) An event with very serious consequences.
 * 3) a revealing or revelation

Synonyms for Apocalypse
Armageddon; doomsday; judgement day; nuclear holocaust; Ragnarok; Ragnarök; Final Judgment; end times;

Derived terms
apocalyptic; apocalypticism

Thesaurus
actuarial prediction; afflatus; baring; direct communication; disclosing; disclosure; discovering; discovery; divine inspiration; divine revelation; envisioning; epiphany; expose; exposition; exposure; foreboding; forecast; forecasting; foreshowing; foresight; foretelling; guesswork; improbability; inspiration; laying bare; manifestation; mystical experience; mysticism; omen; oracle; patefaction; precognition; prediction; prefiguration; prefigurement; prefiguring; presage; presaging; presentiment; preshowing; presignifying; prevision; probability; prognosis; prognostication; promise; prophecy; prophesying; prospectus; removing the veil; revealing; revealment; revelation; showing up; showup; soothsay; speculation; statistical prediction; stripping; theophania; theophany; theopneustia; theopneusty; uncloaking; uncovering; unfolding; unfoldment; unmasking; unveiling; unwrapping; vaticination; vision

Etymology
From ἀποκάλυψις:, from ἀπό: and καλύπτω:.