Kuangchou vs urban center

Kuangchou and urban center both are nouns.

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

Kuangchou (noun)	urban center (noun)
a city on the Zhu Jiang delta in southern China; the capital of Guangdong province and a major deep-water port	a large and densely populated urban area; may include several independent administrative districts