metropolis vs Barranquilla

metropolis and Barranquilla both are nouns.

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

metropolis (noun)	Barranquilla (noun)
people living in a large densely populated municipality	a port city of northern Colombia near the Caribbean on the Magdalena River
a large and densely populated urban area; may include several independent administrative districts