metropolis vs Cadiz

metropolis and Cadiz both are nouns.

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

metropolis (noun)	Cadiz (noun)
people living in a large densely populated municipality	an ancient port city in southwestern Spain
a large and densely populated urban area; may include several independent administrative districts