Erie vs urban center

Erie and urban center both are nouns.

Word	Noun	Adjective	Verb	Adverb
Erie	Yes	No	No	No
urban center	Yes	No	No	No

Erie (noun)	urban center (noun)
a port city on Lake Erie in northwestern Pennsylvania	a large and densely populated urban area; may include several independent administrative districts
the 4th largest of the Great Lakes; it is linked to the Hudson River by the New York State Barge Canal
a member of an Iroquoian people formerly living on the south shore of Lake Erie in northern Ohio and northwest Pennsylvania and western New York