[noun] gases ejected from an engine as waste products Synonyms:fumes, fumes
[noun] system consisting of the parts of an engine through which burned gases or steam are discharged Synonyms:system
[verb] wear out completely; "This kind of work exhausts me"; "I'm beat"; "He was all washed up after the exam" Synonyms:wash up, beat, tucker, tucker out
[verb] use up (resources or materials); "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
[verb] deplete; "exhaust one's savings"; "We quickly played out our strength" Synonyms:run down, play out, sap, tire
[verb] use up the whole supply of; "We have exhausted the food supplies"
[verb] create a vacuum in (a bulb, flask, reaction vessel, etc.) Synonyms:evacuate