Kananga vs urban center

Kananga and urban center both are nouns.

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

Kananga (noun)	urban center (noun)
a city in southwestern Congo; former name (until 1966) was Luluabourg	a large and densely populated urban area; may include several independent administrative districts