metropolis vs Semarang

metropolis and Semarang both are nouns.

Word	Noun	Adjective	Verb	Adverb
metropolis	Yes	No	No	No
Semarang	Yes	No	No	No

metropolis (noun)	Semarang (noun)
people living in a large densely populated municipality	a port city is southern Indonesia; located in northern Java
a large and densely populated urban area; may include several independent administrative districts