Kuala Lumpur vs urban center

Kuala Lumpur and urban center both are nouns.

Word	Noun	Adjective	Verb	Adverb
Kuala Lumpur	Yes	No	No	No
urban center	Yes	No	No	No

Kuala Lumpur (noun)	urban center (noun)
the largest city and former capital of Malaysia until 2005	a large and densely populated urban area; may include several independent administrative districts