1. Costuming. A closure consisting of an object (the button) attached to the inner material, usually disc-shaped, going into a slot (the button-hole) in the outer material. Resin /Garment /Shank Button (JG-78-01) - China Resin Button, Garment Button, Shank Button in Button 2. Control. A key or push-switch on a control console; one example: bump button. Push Switch DS500, DS212 3. Lighting. A lighting look, often executed on the final beat (last note) of a musical piece (watch the conductor or drummer for the cue).