A wall made from stone.

Alternative form of stonewall.

plural of cavity wall

A specialised hand-held power tool used for cutting narrow grooves in walls, for instance when laying electrical cable.

plural of blue wall

plural of wall of silence

A game similar to association football and rugby union that originated from and is still played at Eton College.

plural of Trombe wall

A wall built on the winter sun side of a building with a glass external layer and a high mass internal layer separated by a layer of air, so as to absorb heat during sunlit hours of winter and slowly release it overnight.

plural of side wall