Lushunkou District vs urban center

Lushunkou District and urban center both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lushunkou District	Yes	No	No	No
urban center	Yes	No	No	No

Lushunkou District (noun)	urban center (noun)
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