Goma vs urban center

Goma and urban center both are nouns.

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

Goma (noun)	urban center (noun)
a city in eastern Congo at the northern end of Lake Kivu near the border with Rwanda	a large and densely populated urban area; may include several independent administrative districts