metropolis: Meaning and Definition of

me•trop•o•lis

1. any large, busy city.
2. the chief, and sometimes capital, city of a country, state, or region.
3. a central or principal place, as of some activity: the music metropolis of France.
4. the mother city or parent state of a colony, esp. of an ancient Greek colony.
5. the chief see of an ecclesiastical province.