a man-made object taken as a whole

rectangular block of clay baked by the sun or in a kiln; used as a building or paving material

a block of material used in construction work

building material consisting of a piece of rock hewn in a definite shape for a special purpose

building material consisting of bricks laid with mortar between them

a building material that is a powder made of a mixture of calcined limestone and clay; used with water and sand or gravel to make concrete and mortar