surface lift vs ski lift

surface lift and ski lift both are nouns.

Word	Noun	Adjective	Verb	Adverb
surface lift	Yes	No	No	No
ski lift	Yes	No	No	No

As nouns, ski lift is a hypernym of surface lift; that is, ski lift is a word with a broader meaning than surface lift:

surface lift: a ski tow that pulls skiers up a slope without lifting them off the ground
ski lift: a powered conveyance that carries skiers up a hill

Other hypernyms of surface lift include lift, ski tow.

surface lift (noun)	ski lift (noun)
a ski tow that pulls skiers up a slope without lifting them off the ground	a powered conveyance that carries skiers up a hill