Savannah vs metropolis

Savannah and metropolis both are nouns.

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

Savannah (noun)	metropolis (noun)
a port in eastern Georgia near the mouth of the Savannah river	people living in a large densely populated municipality
a river in South Carolina that flows southeast to the Atlantic	a large and densely populated urban area; may include several independent administrative districts