tap dancer vs tapper

tap dancer and tapper both are nouns.

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

As nouns, tap dancer and tapper are synonyms defined as:

tap dancer and tapper: a dancer who sounds out rhythms by using metal taps on the toes and heels of the shoes

tap dancer (noun)	tapper (noun)
a dancer who sounds out rhythms by using metal taps on the toes and heels of the shoes	someone who wiretaps a telephone or telegraph wire
	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