a. The act of revealing or disclosing.
b. Something revealed, especially a dramatic disclosure of something not previously known or realized.
c. A sudden insight or idea: "I'd had the idea to dig up Dad's coffin ... I was lying in bed and I had the revelation, like a simple solution to an impossible problem" (Jonathan Safran Foer).
2. Theology A manifestation of divine will or truth.
3. Revelation See Table at Bible.
[Middle English revelacion, from Old French revelation, from Latin revēlātiō, revēlātiōn-, from revēlātus, past participle of revēlāre, to reveal; see REVEAL1.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.