(v): lessen the intensity of; temper; hold in restraint; hold or keep within limits
(v): kill by squeezing the throat of so as to cut off the air
(v): cause to die; put to death, usually intentionally or knowingly
(v): reduce the air supply
(v): make better or improve in quality
(n): a valve that regulates the supply of fuel to the engine
(n): control consisting of a mechanical device for controlling the flow of a fluid
(n): a pedal that controls the throttle valve
(n): a lever that is operated with the foot
