exhaust

[ig-zawst]

verb (used with object)

1. to drain of strength or energy, wear out, or fatigue greatly, as a person.

   I have exhausted myself working.

   Synonyms: debilitate, prostrate, enervate, tire
   Antonyms: invigorate, strengthen

2. to use up or consume completely; expend the whole of.

   He exhausted a fortune in stock-market speculation.

   Synonyms: dissipate, squander, waste

3. to draw out all that is essential in (a subject, topic, etc.); treat or study thoroughly.

4. to empty by drawing out the contents.

   to exhaust a tank of fuel oil.

   Synonyms: void
   Antonyms: fill

5. to create a vacuum in.

6. to draw out or drain off completely.

7. to deprive wholly of useful or essential properties, possessions, resources, etc.

8. Chemistry, Pharmacology.,  to deprive of ingredients by the use of solvents, as a drug.

9. to destroy the fertility of (soil), as by intensive cultivation.

verb (used without object)

1. to pass out or escape, as spent steam from the cylinder of an engine.

noun

Machinery.

1. the escape of steam or gases from the cylinder of an engine.

2. the steam or gases ejected.

   Synonyms: vapor, smoke, fume

3. Also called exhaust system. the parts of an engine through which the exhaust is ejected.

exhaust

/ ɪɡˈzɔːst /

verb

1. to drain the energy of; tire out

   to exhaust someone by constant questioning

2. to deprive of resources, etc

   a nation exhausted by war

3. to deplete totally; expend; consume

   to exhaust food supplies

4. to empty (a container) by drawing off or pumping out (the contents)

5. to develop or discuss thoroughly so that no further interest remains

   to exhaust a topic of conversation

6. to remove gas from (a vessel, etc) in order to reduce the pressure or create a vacuum; evacuate

7. to remove or use up the active ingredients from (a drug, solution, etc)

8. to destroy the fertility of (soil) by excessive cultivation

9. (intr) (of steam or other gases) to be emitted or to escape from an engine after being expanded

noun

1. gases ejected from an engine as waste products

2. 1. the expulsion of expanded gas or steam from an engine

   2. ( as modifier )

      exhaust stroke

3. 1. the parts of an engine through which the exhausted gases or steam pass

   2. ( as modifier )

      exhaust valve

      exhaust pipe

Other Word Forms

• exhauster noun
• exhaustible adjective
• exhaustibility noun
• multiexhaust noun
• nonexhausted adjective
• nonexhaustible adjective
• preexhaust verb (used with object)
• unexhausted adjective
• unexhaustedly adverb
• exhausting adjective
• exhausted adjective

Word History and Origins

Origin of exhaust¹

1515–25; 1895–1900 exhaust for def. 11; < Latin exhaustus emptied out, drained out, past participle of exhaurīre

Word History and Origins

Origin of exhaust¹

C16: from Latin exhaustus made empty, from exhaurīre to draw out, from haurīre to draw, drain

Example Sentences

By comparison, the risk was 47.6 percent with a typical personal setup, 38 percent with a personal ventilation system using an exhaust design, and 91 percent under regular room ventilation.

Read more on Science Daily

Engaging with “Dating Talk” on the Whatever channel, or similar red-pill content wherever it shows up, can be exhausting for outsiders of this world.

Read more on Salon

Their resistance, from a population harassed, exhausted, decimated but standing tall, is unmatched.

Read more on The Wall Street Journal

And although they recall many wordless moments of repose between takes, the shoot enlivened the actors far more than it exhausted them.

Read more on Los Angeles Times

For kids who cope by masking, constantly deciphering and mimicking social responses is often cognitively and emotionally exhausting.

Read more on Los Angeles Times

Related Words

• drain 
• fatigue 
• frazzle 
• impoverish 
• overwork 
• sap 
• tire out www.thesaurus.com
• use up 
• weaken 
• wear out 
• weary