saddleback roof vs gable roof

saddleback roof and gable roof both are nouns.

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

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

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

Other synonyms of saddleback roof include saddle roof, saddleback.

saddleback roof (noun)	gable 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