metropolis vs Argos

metropolis and Argos both are nouns.

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

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