stepper vs hoofer

stepper and hoofer both are nouns.

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

As nouns, stepper and hoofer are synonyms defined as:

stepper (noun)	hoofer (noun)
a horse trained to lift its feet high off the ground while walking or trotting	a professional dancer
a motor (especially an electric motor) that moves or rotates in small discrete steps
a professional dancer