n.
1.gases ejected from an engine as waste products
2.system consisting of the parts of an engine through which burned gases or steam are discharged exhaust v.
1.wear out completely
2.use up (resources or materials)
3.deplete
4.use up the whole supply of
5.create a vacuum in (a bulb, flask, reaction vessel, etc.)
Idiom of the Day
work one's fingers to the bone
to work very hard
The woman is working her fingers to the bone raising her three children.