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quench

American  
[kwench] / kwɛntʃ /

verb (used with object)

  • quenches,
    present (3rd person singular)
  • quenched,
    past participle,  past
  • quenching
    present participle
  1. to slake, satisfy, or allay (thirst, desires, passion, etc.).

  2. to put out or extinguish (fire, flames, etc.).

  3. to cool suddenly by plunging into a liquid, as in tempering steel by immersion in water.

  4. to subdue or destroy; overcome; quell.

    to quench an uprising.

  5. Electronics. to terminate (the flow of electrons in a vacuum tube) by application of a voltage.


quench British  
/ kwɛntʃ /

verb

  1. to satisfy (one's thirst, desires, etc); slake

  2. to put out (a fire, flame, etc); extinguish

  3. to put down or quell; suppress

    to quench a rebellion

  4. to cool (hot metal) by plunging it into cold water

  5. physics to reduce the degree of (luminescence or phosphorescence) in (excited molecules or a material) by adding a suitable substance

  6. electronics

    1. to suppress (sparking) when the current is cut off in an inductive circuit

    2. to suppress (an oscillation or discharge) in a component or device

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Etymology

Origin of quench

1150–1200; Middle English quenchen, earlier cwenken; compare Old English -cwencan in ācwencan to quench ( cf. a- 3)

Explanation

Quench means to put out, put an end to, or satisfy. If you're stranded in the middle of the desert with nothing to drink, you're probably dreaming of a nice big glass of ice water to quench your thirst. Quench originally meant “extinguish fires.” That meaning still works today, but we've expanded it to also apply to quenching the fiery thirst of a summer marathon runner or quenching the hot flames of passion. If you want to get deep about the word quench, consider what Voltaire said: “Superstition sets the whole world in flames; philosophy quenches them.”

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Vocabulary lists containing quench

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The unexploded ordnance, some of which was heard going off during the dayslong effort to quench the fire, made it harder for firefighters to get close to the blaze.

From The Wall Street Journal ● Aug. 20, 2026

"It's mainly to quench our thirst, and we have to give our animals water too," Andras, a student, told AFP.

From Barron's ● Jun. 30, 2026

I too had done horrible things to quench my self-loathing.

From Los Angeles Times ● Jan. 23, 2026

“For a lot of people, a beverage is just to quench the thirst or get an energy boost with caffeine, so yeah maybe the tea behind it isn’t really that important for them.”

From Salon ● Jul. 31, 2025

Jo couldn’t even lose her heart in a decorous manner, but sternly tried to quench her feelings, and failing to do so, led a somewhat agitated life.

From "Little Women" by Louisa May Alcott

Berkeley Lab scientists have developed an approach to prevent quenches altogether, rather than simply trying to manage them after they occur.

From Science Daily ● Mar. 11, 2024

There is, legitimately, no item on earth that quenches and refreshes like good ol' water — especially when you've eaten something especially heavy or you've accidentally eaten the equivalent of your body weight in candy.

From Salon ● Oct. 25, 2023

The river, which cascades from the Rockies down to the deserts of the Southwest, quenches the thirst of 40 million people in the U.S. and Mexico and sustains a $15 billion-a-year agricultural industry.

From Seattle Times ● Aug. 18, 2022

Foremilk quenches the infant’s thirst, whereas hindmilk satisfies the infant’s appetite.

From Textbooks ● Jun. 19, 2013

The sea shall save me from the sweltering land:     Far out I'll wade, till creeping up and up,     The cold green water quenches every limb.

From A Little Book of Old Time Verse Old Fashioned Flowers by Various

I sipped on this drink during a midday walk and it kept me cool, quenched and satisfied.

From Salon ● Jul. 27, 2025

They quenched their thirst by drinking contaminated water from a nearby well.

From BBC ● Jan. 21, 2025

"Everything seems to happen faster and more dramatically in the early universe, and that might include galaxies moving from a star-forming phase to dormant or quenched," said Looser.

From Science Daily ● Mar. 6, 2024

At this point near Gennadi village, its climate change-fueled fury was only quenched by the sea.

From Seattle Times ● Dec. 5, 2023

His yearning, in a sense, was too powerful to be quenched by human contact.

From "Into the Wild" by Jon Krakauer

It manufactures neodymium magnets by pouring liquid alloy onto a rotating, cooled disk, then rapidly quenching and pulverizing it to freeze the delicate crystalline structure at a microscopic scale before it can grow.

From The Wall Street Journal ● Jun. 2, 2026

The primary solution to resolve this crisis would’ve been to pump a neutralizing agent into the problem tank, quenching it and making it no longer explosive.

From Los Angeles Times ● May 23, 2026

They are used to quenching their thirst with snow, but with little or no snowfall, they can easily get dehydrated.

From Barron's ● Feb. 10, 2026

But there was a problem: No amount of dam building seemed capable of quenching the West’s thirst for water.

From Slate ● Aug. 28, 2024

Almost like a mental hiccup, as they watch my brother gulp the quenching blue liquid.

From "Dry" by Neal Shusterman and Jarrod Shusterman

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