metropolis vs Mycenae

metropolis and Mycenae both are nouns.

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

metropolis (noun)	Mycenae (noun)
people living in a large densely populated municipality	an ancient city is southern Greece; center of the Mycenaean civilization during the late Bronze Age
a large and densely populated urban area; may include several independent administrative districts