city vs Tripoli

city and Tripoli both are nouns.

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

city (noun)	Tripoli (noun)
people living in a large densely populated municipality	a port city and commercial center in northwestern Lebanon on the Mediterranean Sea
a large and densely populated urban area; may include several independent administrative districts	the capital and chief port and largest city of Libya; in northwestern Libya on the Mediterranean Sea; founded by the Phoenicians in the 7th century BC
an incorporated administrative district established by state charter