dry wall vs dry-stone wall

dry wall and dry-stone wall both are nouns.

Word	Noun	Adjective	Verb	Adverb
dry wall	Yes	No	No	No
dry-stone wall	Yes	No	No	No

As nouns, dry wall and dry-stone wall are synonyms defined as:

dry wall and dry-stone wall: a stone wall made with stones fitted together without mortar

dry wall (noun)	dry-stone wall (noun)
a stone wall made with stones fitted together without mortar	a stone wall made with stones fitted together without mortar
a wide flat board used to cover walls or partitions; made from plaster or wood pulp or other materials and used primarily to form the interior walls of houses