Metropolis
Metropolis , noun
[Latin metropolis, Greek {not transcribed}, prop., the mother city (in relation to colonies); {not transcribed} mother + {not transcribed} city. See Mother, and Police.]
1.
The mother city; the chief city of a kingdom, state, or country.
[Edinburgh] gray metropolis of the North.
2.
(Ecclesiastical) The seat, or see, of the metropolitan, or highest church dignitary.
The great metropolis and see of Rome.
3.
Any large city.