metropolis vs Savannah

metropolis and Savannah both are nouns.

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

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