Hangchow vs urban center

Hangchow and urban center both are nouns.

Word	Noun	Adjective	Verb	Adverb
Hangchow	Yes	No	No	No
urban center	Yes	No	No	No

Hangchow (noun)	urban center (noun)
a city of eastern China on Hangzhou Bay; regarded by Marco Polo as the finest city in the world	a large and densely populated urban area; may include several independent administrative districts