metropolis vs Culiacan

metropolis and Culiacan both are nouns.

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

metropolis (noun)	Culiacan (noun)
people living in a large densely populated municipality	a city in northwestern Mexico
a large and densely populated urban area; may include several independent administrative districts