throttle

Noun

• a pedal that controls the throttle valve
  • he stepped on the gas
    

• a valve that regulates the supply of fuel to the engine

Verb

• reduce the air supply
  • choke a carburetor
    

• 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
    

• place limits on (extent or access)
  • restrict the use of this parking lot
    
  • limit the time you can spend with your friends
    

Related words

• Synonyms: 
  accelerator , accelerator pedal , gas pedal , gas , gun , throttle valve , choke , strangle , strangulate , restrict , restrain , trammel , limit , bound , confine