Corinth vs metropolis

Corinth and metropolis both are nouns.

Word	Noun	Adjective	Verb	Adverb
Corinth	Yes	No	No	No
metropolis	Yes	No	No	No

Corinth (noun)	metropolis (noun)
the modern Greek port near the site of the ancient city that was second only to Athens	people living in a large densely populated municipality
	a large and densely populated urban area; may include several independent administrative districts