Bruges vs metropolis

Bruges and metropolis both are nouns.

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

Bruges (noun)	metropolis (noun)
a city in northwestern Belgium that is connected by canal to the North Sea; in the 13th century it was a leading member of the Hanseatic League; the old city (known as the City of Bridges) is a popular tourist attraction	people living in a large densely populated municipality
	a large and densely populated urban area; may include several independent administrative districts