[n] a valve that regulates the supply of fuel to the engine
[n] a pedal that controls the throttle valve; "he stepped on the gas"
[v] reduce the air supply; of carburetors
[v] place limits on (extent or access); "restrict the use of this parking lot"; "limit the time you can spend with your friends"
[v] kill by squeezing the throat of so as to cut off the air; "he tried to strangle his opponent"; "A man in Boston has been strangling several dozen prostitutes"
accelerator, accelerator pedal, bound, choke, confine, gas, gas pedal, gun, limit, restrain, restrict, strangle, strangulate, throttle valve, trammel