D defs.my
Entry 4 senses Webster, 1913

Revelation

/rĕvˌ-əl-āsh'-ən/ · Rev·e·la·tion · IPA /ˌɹɛv.əˈleɪ.ʃən/
01 n. The act of revealing, disclosing, or discovering to others what was before unknown to them.
  1. 1.
    The act of revealing, disclosing, or discovering to others what was before unknown to them.
  2. 2.
    That which is revealed.
  3. 3.
    The act of revealing divine truth.(Theol.)
    “By revelation he made known unto me the mystery, as I wrote afore in few words.” — Eph. iii. 3.
  4. 4.
    Specifically, the last book of the sacred canon, containing the prophecies of St. John; the Apocalypse or Book of Revelation or The Revelation of Saint John. Also: Apocalypse, Book of Revelation, The Revelation of Saint John