city vs Mandalay

city and Mandalay both are nouns.

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

city (noun)	Mandalay (noun)
people living in a large densely populated municipality	a city in central Myanmar to the north of Rangoon
a large and densely populated urban area; may include several independent administrative districts
an incorporated administrative district established by state charter