urban center vs Cannes

urban center and Cannes both are nouns.

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

urban center (noun)	Cannes (noun)
a large and densely populated urban area; may include several independent administrative districts	a port and resort city on the French Riviera; site of an annual film festival