Leeds vs urban center

Leeds and urban center both are nouns.

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

Leeds (noun)	urban center (noun)
a city on the River Aire in West Yorkshire in northern England; a center of the clothing industry	a large and densely populated urban area; may include several independent administrative districts