a temporary structure of timber, boards, etc., for various purposes, as for supporting workmen and materials in building, for exhibiting a spectacle upon, for holding the spectators at a show, etc.-specifically, a stage or elevated platform for the execution of a criminal; as, to die on the scaffold.-an accumulation of adherent, partly fused material forming a shelf, or dome-shaped obstruction, above the tuyeres in a blast furnace.-to furnish or uphold with a scaffold.