metropolis vs Dobrich

metropolis and Dobrich both are nouns.

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

metropolis (noun)	Dobrich (noun)
people living in a large densely populated municipality	a city in northeastern Bulgaria (north of Varna) that is the commercial center of an agricultural region
a large and densely populated urban area; may include several independent administrative districts