Jerez de la Frontera vs metropolis

Jerez de la Frontera and metropolis both are nouns.

Word	Noun	Adjective	Verb	Adverb
Jerez de la Frontera	Yes	No	No	No
metropolis	Yes	No	No	No

Jerez de la Frontera (noun)	metropolis (noun)
a city in southwestern Spain that is famous for making sherry	people living in a large densely populated municipality
	a large and densely populated urban area; may include several independent administrative districts