a final and conclusive battle between the forces of good and evil, as in the New Testament of the Bible
I am still as much concerned as ever about the Battle of Armageddon; but I am not as much concerned about the General Election — G K Chesterton
the place where this will be fought
a vast decisive conflict
[Greek Armageddōn, Harmagedōn, scene of the battle foretold in Revelations 16:14–16]