metropolis vs Orleans

metropolis and Orleans both are nouns.

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

metropolis (noun)	Orleans (noun)
people living in a large densely populated municipality	a long siege of Orleans by the English was relieved by Joan of Arc in 1429
a large and densely populated urban area; may include several independent administrative districts	a city on the Loire river in north central France; site of the siege of Orleans by the English (1428-1429)