municipal center vs civic center

municipal center and civic center both are nouns.

Word	Noun	Adjective	Verb	Adverb
municipal center	Yes	No	No	No
civic center	Yes	No	No	No

As nouns, municipal center and civic center are synonyms defined as:

Other synonyms of municipal center include down town.

municipal center (noun)	civic center (noun)
the center of a city	a center where the members of a community can gather for social or cultural activities
	the center of a city