leap vs ski jump

leap and ski jump both are nouns.

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

As verbs, ski jump is a hyponym of leap; that is, ski jump is a word with a more specific, narrower meaning than leap:

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

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