saddleback vs roof

saddleback and roof both are nouns.

Word	Noun	Adjective	Verb	Adverb
saddleback	Yes	No	No	No
roof	Yes	No	Yes	No

As nouns, roof is a hypernym of saddleback; that is, roof is a word with a broader meaning than saddleback:

saddleback (noun)	roof (noun)
a double sloping roof with a ridge and gables at each end	a protective covering that covers or forms the top of a building
a pass or ridge that slopes gently between two peaks (is shaped like a saddle)	protective covering on top of a motor vehicle
	an upper limit on what is allowed
	the inner top surface of a covered area or hollow space

saddleback (verb)	roof (verb)
	provide a building with a roof; cover a building with a roof