metropolis vs Kuala Lumpur

metropolis and Kuala Lumpur both are nouns.

Word	Noun	Adjective	Verb	Adverb
metropolis	Yes	No	No	No
Kuala Lumpur	Yes	No	No	No

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