metropolis vs Bakersfield

metropolis and Bakersfield both are nouns.

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

metropolis (noun)	Bakersfield (noun)
people living in a large densely populated municipality	a city in south central California at the southern end of the San Joaquin Valley
a large and densely populated urban area; may include several independent administrative districts