metropolis vs Lushunkou District

metropolis and Lushunkou District both are nouns.

Word	Noun	Adjective	Verb	Adverb
metropolis	Yes	No	No	No
Lushunkou District	Yes	No	No	No

metropolis (noun)	Lushunkou District (noun)
people living in a large densely populated municipality	a major port city in northeastern China on the Liaodong Peninsula; now a part of Luda
a large and densely populated urban area; may include several independent administrative districts