urban center vs Fort Lauderdale

urban center and Fort Lauderdale both are nouns.

Word	Noun	Adjective	Verb	Adverb
urban center	Yes	No	No	No
Fort Lauderdale	Yes	No	No	No

urban center (noun)	Fort Lauderdale (noun)
a large and densely populated urban area; may include several independent administrative districts	a city in southeast Florida on the Atlantic coast to the north of Miami; a favorite place for college students to go on their spring vacations