city vs New Haven

city and New Haven both are nouns.

Word	Noun	Adjective	Verb	Adverb
city	Yes	No	No	No
New Haven	Yes	No	No	No

city (noun)	New Haven (noun)
people living in a large densely populated municipality	a city in southwestern Connecticut; site of Yale University
a large and densely populated urban area; may include several independent administrative districts
an incorporated administrative district established by state charter