| Noun | 1. | Armageddon - (New Testament) the scene of the final battle between the kings of the Earth at the end of the worldNew Testament - the collection of books of the Gospels, Acts of the Apostles, the Pauline and other epistles, and Revelation; composed soon after Christ's death; the second half of the Christian Bible |
| 2. | Armageddon - any catastrophically destructive battle; "they called the first World War an Armageddon"battle, engagement, fight, conflict - a hostile meeting of opposing military forces in the course of a war; "Grant won a decisive victory in the battle of Chickamauga"; "he lost his romantic ideas about war when he got into a real engagement" |