professional dancer vs terpsichorean

professional dancer and terpsichorean both are nouns.

Word	Noun	Adjective	Verb	Adverb
professional dancer	Yes	No	No	No
terpsichorean	Yes	Yes	No	No

As nouns, professional dancer and terpsichorean are synonyms defined as:

professional dancer and terpsichorean: a performer who dances professionally

Other synonyms of professional dancer include dancer.

professional dancer (noun)	terpsichorean (noun)
a performer who dances professionally	a performer who dances professionally

professional dancer (adjective)	terpsichorean (adjective)
	of or relating to dancing