exhaust

verb
ex·​haust | \ ig-ˈzȯst How to pronounce exhaust (audio) \
exhausted; exhausting; exhausts

Definition of exhaust

 (Entry 1 of 2)

transitive verb

1a : to consume entirely : use up exhausted our funds in a week
b : to tire extremely or completely exhausted by overwork
c : to deprive of a valuable quality or constituent exhaust a soil of fertility
2a : to draw off or let out completely
b : to empty by drawing off the contents specifically : to create a vacuum in
3a : to consider or discuss (a subject) thoroughly or completely
b : to try out the whole number of exhausted all the possibilities

intransitive verb

: discharge, empty the engine exhausts through the muffler

exhaust

noun

Definition of exhaust (Entry 2 of 2)

1a : the escape of used gas or vapor from an engine
b : the gas or vapor thus escaping
2a : the conduit through which used gases escape
b : an arrangement for removing fumes, dusts, or odors from an enclosure

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Other Words from exhaust

Verb

exhauster noun
exhaustibility \ ig-​ˌzȯ-​stə-​ˈbi-​lə-​tē How to pronounce exhaustibility (audio) \ noun
exhaustible \ ig-​ˈzȯ-​stə-​bəl How to pronounce exhaustible (audio) \ adjective

Choose the Right Synonym for exhaust

Verb

deplete, drain, exhaust, impoverish, bankrupt mean to deprive of something essential to existence or potency. deplete implies a reduction in number or quantity so as to endanger the ability to function. depleting our natural resources drain implies a gradual withdrawal and ultimate deprivation of what is necessary to an existence. personal tragedy had drained him of all spirit exhaust stresses a complete emptying. her lecture exhausted the subject impoverish suggests a deprivation of something essential to richness or productiveness. impoverished soil bankrupt suggests impoverishment to the point of imminent collapse. war had bankrupted the nation of resources

tire, weary, fatigue, exhaust, jade mean to make or become unable or unwilling to continue. tire implies a draining of one's strength or patience. the long ride tired us out weary stresses tiring until one is unable to endure more of the same thing. wearied of the constant arguing fatigue suggests great lassitude from excessive strain or undue effort. fatigued by the day's chores exhaust implies complete draining of strength by hard exertion. shoveling snow exhausted him jade suggests the loss of all freshness and eagerness. appetites jaded by overindulgence

Examples of exhaust in a Sentence

Verb

If they keep spending this way, they'll exhaust their savings. He can talk about baseball for hours and still feel that he hasn't exhausted the subject .

Noun

diesel exhaust from passing trucks There's a problem with the car's exhaust.
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Recent Examples on the Web: Verb

Stitt’s committee used all of the $2,471,900 that was raised from contributed funds and ticket sales, exhausting residual funds in his inaugural account. USA TODAY, "Gator captured, pledge restored, ailing giraffe put down: News from around our 50 states," 16 July 2019 After spoofing infections for nearly 1,100 devices from 15 separate campaigns, the whitehats exhausted the supply of unique bitcoin wallets the attackers had pre-generated. Dan Goodin, Ars Technica, "Whitehats use DoS attack to score key victory against ransomware crooks," 10 July 2019 White dwarfs are essentially stellar corpses, the slowly cooling cores left behind after sunlike stars exhaust their nuclear fuel. Conor Purcell, Scientific American, "Future Gravitational-Wave Detectors Could Find Exoplanets, Too," 8 July 2019 Expensive, exhausting multi-flight air travel had replaced days on trains and steamers. Edward Lotterman, Twin Cities, "Real World Economics: In sports, and STEM, immigrants contribute," 7 July 2019 During the campaign, and through the early months of his term, López Obrador’s promises to demilitarize Mexico brought hope to those exhausted by the widespread terror of the 2006 militarization of the government’s war on drug traffickers. Madeleine Wattenbarger, The New Republic, "Did the Mexican People Really Win?," 5 July 2019 Officers whisked in one person after another to stand before the judge; all of them had been arrested within the past twenty-four hours, and all appeared dishevelled and exhausted. Jennifer Gonnerman, The New Yorker, "Tiffany Cabán Upends Politics As Usual in Queens," 26 June 2019 Two years ago, feeling crushed by debt and exhausted by a corporate sales career, Smith sold her belongings and left her job and expensive San Francisco apartment to travel abroad with her 10-year-old son. Allison Gibson, Bon Appétit, "Whatever Happened to #Vanlife? Well, Things Are Changing," 20 June 2019 That setup will quickly cool things down by exhausting hot, stale air out of the house. Joseph Truini, Popular Mechanics, "How To Cool Down a Room (Without Blasting A/C)," 7 June 2019

Recent Examples on the Web: Noun

Water vapor quickly condenses around soot from the plane’s exhaust and freezes to form cirrus clouds, which can last for minutes or hours. Katie Camero, Science | AAAS, "Aviation’s dirty secret: Airplane contrails are a surprisingly potent cause of global warming," 28 June 2019 The company uses a heavy exhaust and intake-outtake system that makes the lab feel like a wind tunnel, so that in the event of a leak, the butane or other solvents would be quickly exhausted, Ferguson said. San Diego Union-Tribune, "San Diego hash oil labs growing in sophistication, but who’s behind them?," 24 June 2019 The brothers were at Randy's farm, trying to fix a tractor stalled because of a broken exhaust sensor. Author: Annie Gowen, Anchorage Daily News, "Farmers loyal to Trump struggle with impact of trade war," 24 June 2019 Type 209 attack submarine An exhaust valve that expelled toxic by-products of the batteries had failed. Rahul Singh, Quartz India, "You’ve heard stories of Indian Army and Air Force heroes. Now here’s an angel from the Navy," 23 June 2019 Several pilots told The New York Times about multiple encounters with UFOs with no visible engine or infrared exhaust plumes. Doug Criss, CNN, "Two mysterious objects were seen floating above Kansas City. They (probably) weren't aliens," 21 June 2019 The first was knocked over by engine exhaust when Apollo 11's Armstrong and Aldrin blasted off the moon. Fox News, "Americans prefer to stop asteroids from hitting Earth over going to the Moon or Mars," 20 June 2019 In Midsommar, another woman, a graduate student named Dani (Florence Pugh), is grieving her entire family after her apparently deeply depressed sister kills herself and her parents by piping car exhaust into the sealed-off house at night. Alissa Wilkinson, Vox, "Midsommar is a brutish, nasty daylight nightmare from the director of Hereditary," 20 June 2019 Like all air-breathing engines, the scramjet takes onrushing air and forces it into a combustion chamber, expelling the exhaust as thrust. Kyle Mizokami, Popular Mechanics, "This New Hypersonic Missile Would Travel Faster Than Mach 5," 18 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'exhaust.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of exhaust

Verb

1531, in the meaning defined at transitive sense 1a

Noun

1848, in the meaning defined at sense 1a

History and Etymology for exhaust

Verb

Latin exhaustus, past participle of exhaurire, from ex- + haurire to draw; akin to Middle High German œsen to empty, Greek auein to take

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Learn More about exhaust

Statistics for exhaust

Last Updated

20 Jul 2019

Look-up Popularity

Time Traveler for exhaust

The first known use of exhaust was in 1531

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More Definitions for exhaust

exhaust

verb

English Language Learners Definition of exhaust

 (Entry 1 of 2)

: to use all of someone's mental or physical energy : to tire out or wear out (someone) completely
: to completely use up (something, such as supplies or money)
: to try all of (something)

exhaust

noun

English Language Learners Definition of exhaust (Entry 2 of 2)

: the mixture of gases produced by an engine
: a pipe or system of pipes through which exhaust is released

exhaust

verb
ex·​haust | \ ig-ˈzȯst How to pronounce exhaust (audio) \
exhausted; exhausting

Kids Definition of exhaust

 (Entry 1 of 2)

1 : to tire out : fatigue Hard work will exhaust you.
2 : to use up completely We've exhausted our supplies.
3 : to try out all of We exhausted all options.

exhaust

noun

Kids Definition of exhaust (Entry 2 of 2)

1 : the gas that escapes from an engine
2 : a system of pipes through which exhaust escapes

exhaust

transitive verb
ex·​haust | \ ig-ˈzȯst How to pronounce exhaust (audio) \

Medical Definition of exhaust

1a : to draw off or let out completely
b : to empty by drawing off the contents specifically : to create a vacuum in
2a : to use up : consume completely
b : to tire extremely or completely exhausted by overwork
3 : to extract completely with a solvent exhaust a drug with alcohol

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exhaust

transitive verb
ex·​haust

Legal Definition of exhaust

: to use up or consume entirely: as
a : to try all of (available remedies) the applicant has exhausted the remedies available in the courts of the StateU.S. Code
b : to bring (a claim) through all available prior levels of review each of his claims would now be exhausted— W. R. LaFave and J. H. Israel

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Comments on exhaust

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