tapper vs professional dancer

tapper and professional dancer both are nouns.

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

As nouns, professional dancer is a hypernym of tapper; that is, professional dancer is a word with a broader meaning than tapper:

tapper: a dancer who sounds out rhythms by using metal taps on the toes and heels of the shoes
professional dancer: a performer who dances professionally

Other hypernyms of tapper include dancer, terpsichorean.

tapper (noun)	professional dancer (noun)
someone who wiretaps a telephone or telegraph wire	a performer who dances professionally
a tavern keeper who taps kegs or casks
a worker who uses a tap to cut screw threads
a dancer who sounds out rhythms by using metal taps on the toes and heels of the shoes
a person who strikes a surface lightly and usually repeatedly