city vs Herat

city and Herat both are nouns.

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

city (noun)	Herat (noun)
people living in a large densely populated municipality	a city in northwestern Afghanistan on the site of several ancient cities
a large and densely populated urban area; may include several independent administrative districts
an incorporated administrative district established by state charter