stepper vs dancer

stepper and dancer both are nouns.

Word	Noun	Adjective	Verb	Adverb
stepper	Yes	No	No	No
dancer	Yes	No	No	No

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

Other hypernyms of stepper include professional dancer, terpsichorean.

stepper (noun)	dancer (noun)
a horse trained to lift its feet high off the ground while walking or trotting	a performer who dances professionally
a motor (especially an electric motor) that moves or rotates in small discrete steps	a person who participates in a social gathering arranged for dancing (as a ball)
a professional dancer