urban center vs Klaipeda

urban center and Klaipeda both are nouns.

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

urban center (noun)	Klaipeda (noun)
a large and densely populated urban area; may include several independent administrative districts	a city in western Lithuania on the Baltic Sea; formerly an important trading town of the Hanseatic League