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n. 1. a. Bible In the book of Revelation, the place of the gathering of armies for the final battle before the end of the world. b. The battle involving these armies. 2. A decisive or catastrophic conflict. [Late Latin Armagedōn, from Greek, from Hebrew har məgiddô, the mountain region of Megiddo : har, mountain; see hrr in the Appendix of Semitic roots + məgiddô, Megiddo.] |
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