- Heavy vehicle - Large vehicle - large vehicle for carrying heavy goods - Semi - A small wheel, as of a vehicle; specifically (Ord.), a
small strong wheel, as of wood or iron, for a gun carriage. - A low, wheeled vehicle or barrow for carrying goods,
stone, and other heavy articles. - A swiveling carriage, consisting of a frame with one or
more pairs of wheels and the necessary boxes, springs, etc., to carry
and guide one end of a locomotive or a car; -- sometimes called bogie
in England. Trucks usually have four or six wheels.