Civilization

A civilization is a large group of entites, usually containing at least 1000. Civlizations expand very rapidly, and can double their entity population in a matter of years. They may battle other civilizations or, more commonly with themselves, in conquests known as wars over territory and resources. Civilizations can very greatly in their level of resources. The least efficient civilizations may have only a few thousand entities and inhabit a State. Larger civilizations and smaller civilizations, on the other hand, have much better equipment and technology, something measured on the Kardashev Scale and related scales.

Etymology
The English word civilization comes from the 16th-century civilise ("civilized"), from Latin civis. This is also related to civitas (city) and civilis (civil). Adjectives like "civility" developed in the mid-1500s.