metropolis vs Annaba

metropolis and Annaba both are nouns.

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

metropolis (noun)	Annaba (noun)
people living in a large densely populated municipality	a port city of northeastern Algeria near the Tunisian border
a large and densely populated urban area; may include several independent administrative districts