What is Revelation?

Revelation definition and meaning on Dictionary terms:
the act of revealing or disclosing; disclosure.
something revealed or disclosed, especially a striking disclosure, as of something not before realized.
Theology. God’s disclosure of Himself and His will to His creatures. an instance of such communication or disclosure. something thus communicated or disclosed. something that contains such disclosure, as the Bible.

(initial capital letter) Also called Revelations, The Revelation of St. John the Divine. the last book in the New Testament; the Apocalypse. Abbreviation: Rev.