Augusta vs metropolis

Augusta and metropolis both are nouns.

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

Augusta (noun)	metropolis (noun)
the capital of the state of Maine	people living in a large densely populated municipality
a city in eastern Georgia north-northwest of Savannah; noted for golf tournaments	a large and densely populated urban area; may include several independent administrative districts