metropolis vs St. Mary of Bethlehem

metropolis and St. Mary of Bethlehem both are nouns.

Word	Noun	Adjective	Verb	Adverb
metropolis	Yes	No	No	No
St. Mary of Bethlehem	Yes	No	No	No

metropolis (noun)	St. Mary of Bethlehem (noun)
people living in a large densely populated municipality	port city in northern Brazil in the Amazon delta; main port and commercial center for the Amazon River basin
a large and densely populated urban area; may include several independent administrative districts