urban center vs Dodoma

urban center and Dodoma both are nouns.

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

urban center (noun)	Dodoma (noun)
a large and densely populated urban area; may include several independent administrative districts	a city in the center of Tanzania that has been designated as the future capital