Rochester vs city

Rochester and city both are nouns.

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

Rochester (noun)	city (noun)
a city in western New York; a center of the photographic equipment industry	people living in a large densely populated municipality
a town in southeast Minnesota	a large and densely populated urban area; may include several independent administrative districts
	an incorporated administrative district established by state charter