urban center vs Almaty

urban center and Almaty both are nouns.

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

urban center (noun)	Almaty (noun)
a large and densely populated urban area; may include several independent administrative districts	the largest city in Kazakhstan and the capital until 1998