city vs Genoa

city and Genoa both are nouns.

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

city (noun)	Genoa (noun)
people living in a large densely populated municipality	a seaport in northwestern Italy; provincial capital of Liguria
a large and densely populated urban area; may include several independent administrative districts
an incorporated administrative district established by state charter