noun

1. EXHAUST, system consisting of the parts of an engine through which burned gases or steam are discharged
2. EXHAUST, gases ejected from an engine as waste products
3. EXHAUST, the mixture of gases produced by an engine
4. EXHAUST, a pipe or system of pipes through which exhaust is released

verb

1. EXHAUST, wear out completely
2. EXHAUST, eliminate (a substance)
3. EXHAUST, use up the whole supply of
4. EXHAUST, use up (resources or materials)
5. EXHAUST, deplete
6. EXHAUST, to use all of someone's mental or physical energy : to tire out or wear out (someone) completely
7. EXHAUST, to completely use up (something, such as supplies or money)
8. EXHAUST, to try all of (something)

1. If they keep spending this way, they'll exhaust their savings.
2. He can talk about baseball for hours and still feel that he hasn't exhausted the subject .
3. diesel exhaust from passing trucks
4. There's a problem with the car's exhaust.