metropolis vs Mexicali

metropolis and Mexicali both are nouns.

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

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