metropolis vs Lodz

metropolis and Lodz both are nouns.

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

metropolis (noun)	Lodz (noun)
people living in a large densely populated municipality	a large city of central Poland
a large and densely populated urban area; may include several independent administrative districts