urban center vs Antwerpen

urban center and Antwerpen both are nouns.

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

urban center (noun)	Antwerpen (noun)
a large and densely populated urban area; may include several independent administrative districts	a busy port and financial center in northern Belgium on the Scheldt river; it has long been a center for the diamond industry and the first stock exchange was opened there in 1460