Lushunkou District vs metropolis

Lushunkou District and metropolis both are nouns.

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

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