Madras vs metropolis

Madras and metropolis both are nouns.

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

Madras (noun)	metropolis (noun)
a city in Tamil Nadu on the Bay of Bengal; formerly Madras	people living in a large densely populated municipality
a state in southeastern India on the Bay of Bengal (south of Andhra Pradesh); formerly Madras	a large and densely populated urban area; may include several independent administrative districts