city vs Peshawar

city and Peshawar both are nouns.

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

city (noun)	Peshawar (noun)
people living in a large densely populated municipality	city in northern Pakistan at the eastern end of the Khyber Pass
a large and densely populated urban area; may include several independent administrative districts
an incorporated administrative district established by state charter