definition of
apocalypse

[1] #1 apocalypse n. a cosmic cataclysm in which God destroys the ruling powers of evil. wn

[2] #2 apocalypse n. [Revelation, Revelation of Saint John the Divine, Apocalypse, Book of Revelation] the last book of the New Testament; contains visionary descriptions of heaven and of conflicts between good and evil and of the end of the world; attributed to Saint John the Apostle. wn