metropolis vs Bremerhaven

metropolis and Bremerhaven both are nouns.

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

metropolis (noun)	Bremerhaven (noun)
people living in a large densely populated municipality	a port city in northwestern Germany at the mouth of the Weser River on the North Sea; has a deep natural harbor and is an important shipping center
a large and densely populated urban area; may include several independent administrative districts