Sayda vs metropolis

Sayda and metropolis both are nouns.

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

Sayda (noun)	metropolis (noun)
the main city of ancient Phoenicia	people living in a large densely populated municipality
	a large and densely populated urban area; may include several independent administrative districts