(a) A small, portable writing tablet made from a slab of wood or other hard material, often covered with wax in which the characters are incised; pl. a set of tablets, usu. tied or hinged together, a……

(a) An upright enclosing structure, usu. constructed of stone, brick, etc., serving to bound or demarcate the limits of a town, castle with its outbuildings, monastery, etc.; also, a high, relatively……