What is the meaning of exhaust?

noun

• Gases ejected from an engine as waste products.
  • synonyms: exhaust fumes, fumes
• System consisting of the parts of an engine through which burned gases or steam are discharged.
  • synonyms: exhaust system

verb

• Wear out completely.
  • usage: "This kind of work exhausts me"; "I'm beat"; "He was all washed up after the exam"
  • synonyms: wash up, beat, tucker, tucker out
• Use up (resources or materials. )
  • usage: "this car consumes a lot of gas"; "We exhausted our savings"; "They run through 20 bottles of wine a week"
  • synonyms: consume, eat up, use up, eat, deplete, run through, wipe out
• Deplete.
  • usage: "exhaust one's savings"; "We quickly played out our strength"
  • synonyms: run down, play out, sap, tire
• Use up the whole supply of.
  • usage: "We have exhausted the food supplies"
• Eliminate (a substance. )
  • usage: "combustion products are exhausted in the engine"; "the plant releases a gas"
  • synonyms: discharge, expel, eject, release