gable wall vs gable end

gable wall and gable end both are nouns.

Word	Noun	Adjective	Verb	Adverb
gable wall	Yes	No	No	No
gable end	Yes	No	No	No

As nouns, gable wall and gable end are synonyms defined as:

gable wall and gable end: the vertical triangular wall between the sloping ends of gable roof

Other synonyms of gable wall include gable.

gable wall (noun)	gable end (noun)
the vertical triangular wall between the sloping ends of gable roof	the vertical triangular wall between the sloping ends of gable roof