Definitions
1.nounA support structure that connects the axle or the hub of a wheel to the rim.
2.nounA projecting handle of a steering wheel.
3.nounA rung of a ladder.
4.nounA device for fastening the wheel of a vehicle to prevent it from turning when going downhill.
5.nounOne of the outlying points in a hub-and-spoke model of transportation.
6.verbTo furnish (a wheel) with spokes.