(Greek mythology) In Greek mythology, the primordial state of disorder that exists before the creation of the world, or the first being or deity to exist.

(astronomy) A planetoid and cubewano orbiting in the Kuiper belt.

(fantasy, science fiction) In the Warhammer franchise, a demonic antagonist that sends demons, monsters, warriors, and beasts to wage war on the games' setting.

The unordered state of matter in classical accounts of cosmogony.

Any state of disorder; a confused or amorphous mixture or conglomeration.

(mathematics) A behaviour of iterative non-linear systems in which arbitrarily small variations in initial conditions become magnified over time.

(fantasy) One of the two metaphysical forces of the world in some fantasy settings, as opposed to law.