1. [n]  one of the crosspieces that form the steps of a ladder
2. [n]  support consisting of a radial member of a wheel joining the hub to the rim

Spoke
Spoke

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1. \Spoke\,
   imp. of {Speak}.
   

2. \Spoke\, n. [OE. spoke, spake, AS, sp[=a]ca; akin to D.
   speek, LG. speke, OHG. speihha, G. speiche. [root]170. Cf.
   {Spike} a nail.]
   1. The radius or ray of a wheel; one of the small bars which
      are inserted in the hub, or nave, and which serve to
      support the rim or felly.
   2. (Naut.) A projecting handle of a steering wheel.
   3. A rung, or round, of a ladder.
   4. A contrivance for fastening the wheel of a vehicle, to
      prevent it from turning in going down a hill.
   {To put a spoke in one's wheel}, to thwart or obstruct one in
      the execution of some design.
   

3. \Spoke\, v. t. [imp. & p. p. {Spoked}; p. pr. & vb. n.
   {Spoking}.]
   To furnish with spokes, as a wheel.