Exhaust

/ɪɡˈzɔːst/

Meaning & Definition

noun
The act of expelling or draining a gas, particularly from an engine.
The vehicle's exhaust system needs to be checked regularly.
The waste gases or air expelled from an engine or machine.
The strong smell of exhaust filled the garage as the car was started.
verb
To use up completely; to drain of resources or energy.
After running the marathon, I felt completely exhausted.
To expel or let out a substance, often referring to gases or emissions.
The car's engine can exhaust harmful gases into the environment.
To investigate thoroughly; to explore all possibilities.
The detective exhausted all leads before closing the case.

Etymology

Middle English exhauste, from Latin exhaustus, past participle of exhaurire 'to draw off, take out, empty.'

Common Phrases and Expressions

exhaust fumes
The gases expelled from an engine that can be harmful to health.
exhaust system
The part of a vehicle that directs exhaust gases away from the engine.
exhaust one's options
To consider and eliminate all possible choices.

Related Words

exhaustive
Comprehensive and thorough.
exhaustion
The state of being extremely tired or worn out.
exhausted
In a state of extreme physical or mental fatigue.

Slang Meanings

To be totally worn out or drained of energy.
I'm so exhausted after that workout.
When something runs out completely.
The party was exhausting; by midnight, we were all completely exhausted.