noun

1. a revealing, or disclosing, of something
2. something disclosed; disclosure; esp., a striking disclosure, as of something not previously known or realized
3. Theol.
   1. communication, by a divinity or by divine agency, of divine truth or knowledge; specif., God's manifestation of the divinity or of the divine will to humanity
   2. an instance of this
   3. that which is so communicated, disclosed, or manifested
   4. something, as a writing or event, containing or showing such a communication, disclosure, or manifestation
4. the last book of the New Testament, ascribed to John (in full The Revelation of Saint John the Divine); Apocalypse: abbrev. Rev or Rv
   also Revelations

Etymology: ME reuelacioun < OFr revelation < LL(Ec) revelatio < pp. of L revelare