Aden vs city

Aden and city both are nouns.

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

Aden (noun)	city (noun)
an important port of Yemen; located on the Gulf of Aden; its strategic location has made it a major trading center of southern Arabia since ancient times	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