Brick

n. 1 a small usu. rectangular block of fired or sundried clay used in building. b material of this. 2 child’s toy block. 3 brickshaped thing. 4 slang generous or loyal person.u. (foil. by in, up) close or block with brickwork. adj. 1 built of brick (brick wall). 2 (also brickred) dull red. [Low German or Dutch]