metropolis

As nouns the difference between polygon and metropolis

is that polygon is a plane figure bounded by straight edges while metropolis is the mother (founding) polis (city state) of a colony, especially in the Ancient Greek/Hellenistic world.

As nouns the difference between metroplex and metropolis

is that metroplex is a large metropolitan area containing several cities and their suburbs while metropolis is the mother (founding) polis (city state) of a colony, especially in the Ancient Greek/Hellenistic world.

As an adjective urban

is related to the (or any) city.

As a proper noun Urban

is a given name derived from Latin.

As a noun metropolis is

the mother (founding) polis (city state) of a colony, especially in the Ancient Greek/Hellenistic world.

As nouns the difference between metropolis and agglomeration

is that metropolis is the mother (founding) polis (city state) of a colony, especially in the Ancient Greek/Hellenistic world while agglomeration is the act or process of collecting in a mass; a heaping together.

As nouns the difference between metropolis and village

is that metropolis is metropolis while village is a rural habitation of size between a hamlet and a town.

As a noun metropolis is

metropolis.

Comsmopolitan is likely misspelled.

Comsmopolitan has no English definition.

As a noun metropolis

is the mother (founding) polis (city state) of a colony, especially in the Ancient Greek/Hellenistic world.

As nouns the difference between cosmopolitan and metropolis

is that cosmopolitan is a cosmopolitan person; a cosmopolite while metropolis is the mother (founding) polis (city state) of a colony, especially in the Ancient Greek/Hellenistic world.

As an adjective cosmopolitan

is all-inclusive; affecting the whole world.

As nouns the difference between metropolis and hamlet

is that metropolis is metropolis while hamlet is (biochemistry) a protein complex of alpha-lactalbumin and oleic acid that induces apoptosis in tumor cells, but not in healthy cells.

As a proper noun district

is (with determiner|informal) the district of columbia, the federal district of the united states.

As a noun metropolis is

metropolis.