metropolis vs Wichita Falls

metropolis and Wichita Falls both are nouns.

Word	Noun	Adjective	Verb	Adverb
metropolis	Yes	No	No	No
Wichita Falls	Yes	No	No	No

metropolis (noun)	Wichita Falls (noun)
people living in a large densely populated municipality	a city in north central Texas near the Oklahoma border
a large and densely populated urban area; may include several independent administrative districts