Conflagration

noun

1. A large destructive fire.
2. A burning; a fire; especially, the burning of any large mass of combustibles: as, the conflagration of a city or of a forest; the final conflagration of the world.
3. A fire extending to many objects, or over a large space; a general burning.
4. A large fire extending to many objects, or over a large space; a general burning.
5. A large-scale conflict.