Argos vs metropolis

Argos and metropolis both are nouns.

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

Argos (noun)	metropolis (noun)
an ancient city in southeastern Greece; dominated the Peloponnese in the 7th century BC	people living in a large densely populated municipality
	a large and densely populated urban area; may include several independent administrative districts