metropolis vs Greenville

metropolis and Greenville both are nouns.

Word	Noun	Adjective	Verb	Adverb
metropolis	Yes	No	No	No
Greenville	Yes	No	No	No

metropolis (noun)	Greenville (noun)
people living in a large densely populated municipality	a town in northwest South Carolina in the Piedmont
a large and densely populated urban area; may include several independent administrative districts	a town in western Mississippi on the Mississippi River to the north of Vicksburg
	a city in eastern North Carolina; tobacco market