metropolis vs Lubumbashi

metropolis and Lubumbashi both are nouns.

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

metropolis (noun)	Lubumbashi (noun)
people living in a large densely populated municipality	a city in southeastern Congo near the border with Zambia; a copper mining center; former name (until 1966) was Elisabethville
a large and densely populated urban area; may include several independent administrative districts