wheel

noun

1.
a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines)
Derived from:
wheel
2.
a handwheel that is used for steering
3.
forces that provide energy and direction
4.
a circular helm to control the rudder of a vessel
5.
game equipment consisting of a wheel with slots that is used for gambling; the wheel rotates horizontally and players bet on which slot the roulette ball will stop in
6.
an instrument of torture that stretches or disjoints or mutilates victims
7.
a wheeled vehicle that has two wheels and is moved by foot pedals