Civilization is the opposite of barbarism and chaos. Civilization is an advanced stage of human society, where people live with a reasonable degree of organization and comfort and can think about things like art and education.
Civilization covers a wide range of human achievement — from the ancient Egyptians, to Mayan and Chinese civilizations, Western civilization, and everything in between. You can use the word more generally — when you're lost in the woods, you’ll be looking for signs of civilization — lights in the distance and smoke rising from chimneys. Civilization comes from Latin civis, "citizen." If you've got citizens, then you've got government and you're moving right along on the path of human advancement.