urban center vs Lushunkou District

urban center and Lushunkou District both are nouns.

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

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