exhaust
/ɪɡˈzɔːst/noun
The waste gas that comes out of a car or other engine after it burns fuel.
Example sentences
- “The air near the highway smells of exhaust.”
- “Black exhaust poured from the back of the old truck.”
- “Car exhaust is a major cause of air pollution in cities.”
Also short for 'exhaust pipe', the tube at the back of a car. As a verb, 'exhaust' means to make someone very tired or to use something up completely.