metropolis vs Urmia

metropolis and Urmia both are nouns.

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

metropolis (noun)	Urmia (noun)
people living in a large densely populated municipality	a city on the western side of Lake Urmia in northwestern Iran
a large and densely populated urban area; may include several independent administrative districts	a shallow saline lake in northwestern Iran between Tabriz and the eastern border of Turkey