urban center vs Trablous

urban center and Trablous both are nouns.

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

urban center (noun)	Trablous (noun)
a large and densely populated urban area; may include several independent administrative districts	a port city and commercial center in northwestern Lebanon on the Mediterranean Sea