1. An advanced state of intellectual, cultural, and material development in human society, marked by progress in the arts and sciences, the extensive use of record-keeping, including writing, and the appearance of complex political and social institutions.
2. The type of culture and society developed by a particular nation or region or in a particular epoch: Mayan civilization; the civilization of ancient Rome.
3. The act or process of civilizing or reaching a civilized state.
4. Cultural or intellectual refinement; good taste.
5. Modern society with its conveniences: returned to civilization after camping in the mountains.

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.