to protect from the intrusion of the uninitiated; as, to tile a masonic lodge.-a plate, or thin piece, of baked clay, used for covering the roofs of buildings, for floors, for drains, and often for ornamental mantel works.-a small slab of marble or other material used for flooring.-a plate of metal used for roofing.-a small, flat piece of dried earth or earthenware, used to cover vessels in which metals are fused.-a draintile.-a stiff hat.-to cover with tiles; as, to tile a house.-fig.: to cover, as if with tiles.