metropolis vs Torreon

metropolis and Torreon both are nouns.

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

metropolis (noun)	Torreon (noun)
people living in a large densely populated municipality	a city in northern Mexico to the west of Monterrey
a large and densely populated urban area; may include several independent administrative districts