metropolis vs Tangier

metropolis and Tangier both are nouns.

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

metropolis (noun)	Tangier (noun)
people living in a large densely populated municipality	a city of northern Morocco at the west end of the Strait of Gibraltar
a large and densely populated urban area; may include several independent administrative districts