ski jump vs leap

ski jump and leap both are nouns.

Word	Noun	Adjective	Verb	Adverb
ski jump	Yes	No	Yes	No
leap	Yes	No	Yes	No

As verbs, leap is a hypernym of ski jump; that is, leap is a word with a broader meaning than ski jump:

Other hypernyms of ski jump include bound, jump, spring.

ski jump (noun)	leap (noun)
a steep downward ramp from which skiers jump	a light, self-propelled movement upwards or forwards
	the distance leaped (or to be leaped)
	an abrupt transition
	a sudden and decisive increase

ski jump (verb)	leap (verb)
jump on skis	pass abruptly from one state or topic to another
	move forward by leaps and bounds
	cause to jump or leap
	jump down from an elevated point