Blida vs metropolis

Blida and metropolis both are nouns.

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

Blida (noun)	metropolis (noun)
a city in northern Algeria at the foot of the Atlas Mountains to the southwest of Algiers	people living in a large densely populated municipality
	a large and densely populated urban area; may include several independent administrative districts