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  • cork
    cork
    noun
    the spongy layer of bark of the cork oak, used for making a wide range of products, including bottle stoppers, beverage coasters, fishing rod handles, bulletin boards, sound and heat insulation, and flooring materials.
  • Cork
    Cork
    noun
    a county in Munster province, in S Republic of Ireland. 2,881 sq. mi. (7,460 sq. km).
Synonyms

cork

1 American  
[kawrk] / kɔrk /

noun

  • corks
    plural
  1. the spongy layer of bark of the cork oak, used for making a wide range of products, including bottle stoppers, beverage coasters, fishing rod handles, bulletin boards, sound and heat insulation, and flooring materials.

  2. cork oak.

  3. something made of cork, as produced from the spongy bark of the cork oak.

    Bring that cork in here—we’re using it as a dartboard.

  4. a piece of cork, rubber, or the like used as a stopper, as for a bottle.

    The cork you gave me is too large for this jug.

  5. Angling. a small float to buoy up a fishing line or to indicate that a fish is biting.

    When the cork starts bobbing, you’ve got a fish!

  6. Also called phellem, suberBotany. an outer tissue of bark produced by and exterior to the phellogen.


verb (used with object)

  • corks,
    present (3rd person singular)
  • corked,
    past participle,  past
  • corking
    present participle
  1. to stop with or as if with a cork (often followed byup ).

    The bottles are mechanically corked, two dozen at a time.

    Cork these up and put them back in the cooler.

  2. to provide or fit with cork or a cork.

    They’re tiling floors and corking walls in her new studio.

  3. to blacken with burnt cork.

    During war games, they learned to cork their faces when operating under moonlight.

idioms

  1. blow / pop one's cork, to lose one's temper; release one's emotional or physical tension.

Cork 2 American  
[kawrk] / kɔrk /

noun

  1. a county in Munster province, in S Republic of Ireland. 2,881 sq. mi. (7,460 sq. km).

  2. a seaport in and the county seat of Cork, in the S part.


cork 1 British  
/ kɔːk /

noun

  1. the thick light porous outer bark of the cork oak, used widely as an insulator and for stoppers for bottles, casks, etc

  2. a piece of cork or other material used as a stopper

  3. an angling float

  4. Also called: phellembotany a protective layer of dead impermeable cells on the outside of the stems and roots of woody plants, produced by the outer layer of the cork cambium

"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

adjective

  1. made of cork

"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

verb

  1. to stop up (a bottle, cask, etc) with or as if with a cork; fit with a cork

  2. (often foll by up) to restrain

    to cork up the emotions

  3. to black (the face, hands, etc) with burnt cork

"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
Cork 2 British  
/ kɔːk /

noun

  1. a county of SW Republic of Ireland, in Munster province: crossed by ridges of low mountains; scenic coastline. County town: Cork. Pop: 447 829 (2002). Area: 7459 sq km (2880 sq miles)

  2. a city and port in S Republic of Ireland, county town of Co Cork, at the mouth of the River Lee: seat of the University College of Cork (1849). Pop: 186 239 (2002)

"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

cork Scientific  
/ kôrk /
  1. The outermost layer of tissue in woody plants that is resistant to the passage of water vapor and gases and that becomes the bark. Cork is secondary tissue, formed on the outside of the tissue layer known as cork cambium. The cell walls of cork cells contain suberin. Once they mature, cork cells die.

  2. Also called phellem

  3. The lightweight, elastic outer bark of the cork oak, which grows near the Mediterranean Sea. Cork is used for bottle stoppers, insulation, and other products.


Other Word Forms

Derived Forms

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Past

Future

Etymology

Origin of cork

First recorded in 1275–1325; Middle English cork(e), of disputed origin; perhaps via Dutch or German from Old Spanish alcorque “cork shoe,” ultimately from dialectal Arabic qurq, perhaps from Latin quercus “oak” ( see also fir ( def. )); alternatively, instead from Spanish corcho, from Mozarabic, from Latin cortex “bark” ( see cortex ( def. ))

Explanation

Cork is a lightweight material made from the bark of a particular kind of oak tree. Cork is used in all sorts of ways, from flooring to fishing rod handles to bulletin boards. When cork bark is harvested from a cork oak tree, it doesn't harm the tree itself — this quality is part of what makes cork a useful, renewable material. It shows up in shoes, insulation, wall tiles, and badminton shuttlecocks, as well as bottle stoppers, which are also called corks. The word is from the Spanish alcorque, "cork-soled sandal," which ultimately comes from the Latin name for the cork oak tree, quercus.

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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:

A double cork is a complex and technical trick in skiing which includes two off-axis flips.

From BBC Feb. 16, 2026

One of the most important tricks for Mastro to land will be the double cork 1080, which involves two midair flips and 1080 degrees of rotation.

From The Wall Street Journal Feb. 4, 2026

Death cap mushrooms are known to sprout across the state of California but they thrive in shady, humid or moist environments under live oak and cultivated cork oak trees.

From Los Angeles Times Jan. 16, 2026

Removing the cork reduces that pressure, allowing gas to separate into bubbles.

From Science Daily Nov. 22, 2025

Her little pointed, bewhiskered face popped up like the cork out of a bottle.

From "Secrets at Sea" by Richard Peck

He cited the example of a young musician who had supported Hansard at a recent gig in County Cork.

From BBC Jul. 30, 2026

Researchers at APC Microbiome Ireland, a leading research center at University College Cork, have taken a major step toward understanding how coffee benefits the body.

From Science Daily May 3, 2026

As well as blocking roads, protesters are in place at fuel terminals in Foynes in County Limerick, as well as at Galway Port and a blockade continues at the Whitegate Oil Refinery in east Cork.

From BBC Apr. 10, 2026

Cork actor Hardwicke told the same programme he knew scant details about the Northern Bank robbery, before he read the script.

From BBC Mar. 21, 2026

No less an authority than Oliver Cromwell is said to have remarked that there would have been no Irish rebellion ‘if there had been an Earl of Cork in every province’.

From "The Scientists" by John Gribbin

Some winemakers place microchips under labels and corks that detect bottle tampering.

From The Wall Street Journal May 31, 2026

Hollywood stars embraced and champagne corks popped at this year's Oscars nominee lunch, the glamorous pre-show gathering that was canceled amid last year's devastating Los Angeles wildfires.

From Barron's Feb. 11, 2026

There may well be a few sighs of relief from senior finance company and banking executives following the Supreme Court's ruling, but it is unlikely you will hear the champagne corks popping.

From BBC Aug. 1, 2025

There was no champagne, or popping of corks.

From Los Angeles Times Dec. 1, 2024

“I’m going to sleep where the old man corks off.”

From "A Farewell To Arms" by Ernest Hemingway

When the priceless liquid is poured, the group is horrified by the odor: The wine is corked.

From The Wall Street Journal Apr. 17, 2026

There are various types of flips that have unique names that don't spell out exactly what the trick contains - including wildcat, tamedog, backflip, frontflip, rodeo, backside rodeo and corked spin.

From BBC Feb. 16, 2026

Tan: The first bottle we sampled was corked, so I returned it for a replacement instead of just dumping it down the sink.

From Seattle Times Jun. 4, 2024

But Philippe Faure-Brac, the head of the French union of sommeliers, said that anosmia made it harder to work with chefs on new or more subtle pairings; worse, its victims cannot detect corked wines.

From New York Times Sep. 19, 2021

My jean pockets corked with a crusty hanky to foil the pickpockets, I waded along the high street.

From "Black Swan Green" by David Mitchell

A corking Nancy Drew tale set in 1960s Galicia.

From Los Angeles Times Jun. 15, 2023

“It’s always been part of the game,” he said, “just like hitters have always been corking their bats.”

From Washington Post Dec. 1, 2022

The warts on their outside are called "corking," as horticulturalist Jessica Walliser said on WNYC.

From Salon Oct. 30, 2022

I was put off slightly by this cruelty-free brand’s teenybopper packaging, but with perseverance I have found some corking products.

From The Guardian Jul. 15, 2017

Forty-plus boys nervously corking in laughter are still quite loud.

From "Black Swan Green" by David Mitchell

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