How do you spell Bustle

Available Definitions:
1)  v. i. - To move noisily; to be rudely active; to move in a way to cause agitation or disturbance; as, to bustle through a crowd.
2)  n. - Great stir; agitation; tumult from stirring or excitement.
3)  n. - A kind of pad or cushion worn on the back below the waist, by women, to give fullness to the skirts; -- called also bishop, and tournure.