Emily Dickinson Lexicon

apocalypse, n. [L. < Gk 'uncover,' 'disclose'; Greek name for the book of Revelation in the New Testament.] (webplay: Revelation).

1. Advent; vision of the Beloved; approach of the Bridegroom to the Bride; [fig.] Second Coming of Christ to the Church, as described in chapters 21-22 of Revelation.
2. Appearance; emergence; manifestation; arrival; showing; growth.