city vs Campeche

city and Campeche both are nouns.

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

city (noun)	Campeche (noun)
people living in a large densely populated municipality	a Mexican city on the Bay of Campeche
a large and densely populated urban area; may include several independent administrative districts	a Mexican state on the eastern part of the Gulf of Campeche
an incorporated administrative district established by state charter