Faisalabad vs metropolis

Faisalabad and metropolis both are nouns.

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

Faisalabad (noun)	metropolis (noun)
city in northeast Pakistan, the third largest metropolis in Pakistan	people living in a large densely populated municipality
	a large and densely populated urban area; may include several independent administrative districts