urban center vs Bloemfontein

urban center and Bloemfontein both are nouns.

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

urban center (noun)	Bloemfontein (noun)
a large and densely populated urban area; may include several independent administrative districts	the seat of the supreme court