metropolis vs Al Madinah

metropolis and Al Madinah both are nouns.

Word	Noun	Adjective	Verb	Adverb
metropolis	Yes	No	No	No
Al Madinah	Yes	No	No	No

metropolis (noun)	Al Madinah (noun)
people living in a large densely populated municipality	a city in western Saudi Arabia; site of the tomb of Muhammad; the second most holy city of Islam
a large and densely populated urban area; may include several independent administrative districts