urban center vs Blantyre

urban center and Blantyre both are nouns.

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

urban center (noun)	Blantyre (noun)
a large and densely populated urban area; may include several independent administrative districts	city in southern Malawi; largest city and commercial center of Malawi