exotic dancer vs belly dancer

exotic dancer and belly dancer both are nouns.

Word	Noun	Adjective	Verb	Adverb
exotic dancer	Yes	No	No	No
belly dancer	Yes	No	No	No

As nouns, exotic dancer and belly dancer are synonyms defined as:

Other synonyms of exotic dancer include exotic belly dancer.

exotic dancer (noun)	belly dancer (noun)
a woman who performs a solo belly dance	a woman who performs a solo belly dance
a performer who provides erotic entertainment by undressing to music