<p><strong>Noun</strong></p><ul><li>A small, triangular piece of material inserted into a shirt, shoe, etc., to improve the fit or for reinforcement.</li><li>(Civil Engineering) A plate for uniting structural members at a joint, as in a steel frame or truss.</li><li>(Armor) Also called voider: an area of mail backed with cloth, for defending the armpits or areas at joints.</li><li>A small piece of plate armor at the armhole of a cuirass; pallet.</li></ul>