city vs Bremerhaven

city and Bremerhaven both are nouns.

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

city (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
an incorporated administrative district established by state charter