Troy vs city

Troy and city both are nouns.

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

Troy (noun)	city (noun)
an ancient city in Asia Minor that was the site of the Trojan War	people living in a large densely populated municipality
	a large and densely populated urban area; may include several independent administrative districts
	an incorporated administrative district established by state charter