exhaust vs throttle

exhaust

noun
  • A system consisting of the parts of an engine through which burned gases or steam are discharged; see also exhaust system. 

  • An exhaust pipe, especially on a motor vehicle. 

  • The steam let out of a cylinder after it has done its work there. 

  • The dirty air let out of a room through a register or pipe provided for the purpose. 

  • exhaust gas. 

verb
  • To empty by drawing or letting out the contents 

  • To bring out or develop completely 

  • To discuss thoroughly or completely 

  • To subject to the action of various solvents in order to remove all soluble substances or extractives 

  • To draw or let out wholly; to drain off completely (:liquid) 

  • to tire out; to wear out; to cause to be without any energy 

  • To use up; to deplete, drain or expend wholly, or until the supply comes to an end 

throttle

noun
  • A valve that regulates the supply of fuel-air mixture to an internal combustion engine and thus controls its speed; a similar valve that controls the air supply to an engine. 

  • The lever or pedal that controls this valve. 

verb
  • To utter with breaks and interruption, in the manner of a person half suffocated. 

  • To have the throat obstructed so as to be in danger of suffocation; to choke; to suffocate. 

  • To control or adjust the speed of (an engine). 

  • To breathe hard, as when nearly suffocated. 

  • To cut back on the speed of (an engine, person, organization, network connection, etc.). 

  • To strangle or choke someone. 

How often have the words exhaust and throttle occurred in a corpus of books? (source: Google Ngram Viewer )