leaper vs jumper

leaper and jumper both are nouns.

Word	Noun	Adjective	Verb	Adverb
leaper	Yes	No	No	No
jumper	Yes	No	No	No

As nouns, jumper is a hypernym of leaper; that is, jumper is a word with a broader meaning than leaper:

leaper (noun)	jumper (noun)
someone who bounds or leaps (as in competition)	(basketball) a player releases the basketball at the high point of a jump
	a sleeveless dress resembling an apron; worn over other clothing
	a loose jacket or blouse worn by workmen
	a small connector used to make temporary electrical connections
	a coverall worn by children
	a crocheted or knitted garment covering the upper part of the body
	an athlete who competes at jumping
	a person who jumps