metropolis vs Strasbourg

metropolis and Strasbourg both are nouns.

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

metropolis (noun)	Strasbourg (noun)
people living in a large densely populated municipality	city on the Rhine in eastern France near the German border; an inland port
a large and densely populated urban area; may include several independent administrative districts