Rung /(?)/

Rung

imp. & p. p.
  1. imp. & p. p. of Ring.

Rung

n.
  1. A floor timber in a ship. (Shipbuilding)
  2. One of the rounds of a ladder.
  3. One of the stakes of a cart; a spar; a heavy staff.
  4. One of the radial handles projecting from the rim of a steering wheel; also, one of the pins or trundles of a lantern wheel. (Mach.)