chaos -
The unordered state of matter in classical accounts of cosmogony.
chaos -
Any state of disorder, any confused or amorphous mixture or conglomeration.
chaos -
A given medium; a space in which something exists or lives; an environment.
chaos -
Behaviour of iterative non-linear systems in which arbitrarily small variations in initial conditions become magnified over time.
chaos -
One of the two metaphysical forces of the world in some fantasy settings, as opposed to law.
Wikipedia
Chaos (derived from the Ancient Greek Χάος, Chaos) typically means a state lacking order or predictability. In ancient Greece, it first meant the initial state of the universe, and, by extension, space, darkness, or an abyss (the antithetical, or possibly complementary, concept was cosmos), but later uses of the term by philosophers varied over time. In modern English, the word is used in classical studies with the original meaning; in mathematics and science to refer to a very specific kind of unpredictability; and informally to mean a state of confusion.