urban center vs Namur

urban center and Namur both are nouns.

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

urban center (noun)	Namur (noun)
a large and densely populated urban area; may include several independent administrative districts	a city in south central Belgium situated on a promontory between the Meuse River and the Sambre River; the site of intense fighting in World War I and World War II