saddle roof vs saddleback roof

saddle roof and saddleback roof both are nouns.

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

As nouns, saddle roof and saddleback roof are synonyms defined as:

saddle roof and saddleback roof: a double sloping roof with a ridge and gables at each end

Other synonyms of saddle roof include gable roof, saddleback.

saddle roof (noun)	saddleback roof (noun)
a double sloping roof with a ridge and gables at each end	a double sloping roof with a ridge and gables at each end