metropolis vs Lexington

metropolis and Lexington both are nouns.

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

metropolis (noun)	Lexington (noun)
people living in a large densely populated municipality	the first battle of the American Revolution (April 19, 1775)
a large and densely populated urban area; may include several independent administrative districts	town in eastern Massachusetts near Boston where the first battle of the American Revolution was fought and the first shots fired
	a city in eastern Kentucky; noted for raising thoroughbred horses