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cork
corknounthe 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.
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Cork
Corknouna county in Munster province, in S Republic of Ireland. 2,881 sq. mi. (7,460 sq. km).
cork
1 Americannoun
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corks
plural
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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.
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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.
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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.
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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!
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Also called phellem, suber. Botany. an outer tissue of bark produced by and exterior to the phellogen.
verb (used with object)
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corks,
present (3rd person singular)
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corked,
past participle, past
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corking
present participle
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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.
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to provide or fit with cork or a cork.
They’re tiling floors and corking walls in her new studio.
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to blacken with burnt cork.
During war games, they learned to cork their faces when operating under moonlight.
idioms
noun
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a county in Munster province, in S Republic of Ireland. 2,881 sq. mi. (7,460 sq. km).
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a seaport in and the county seat of Cork, in the S part.
noun
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the thick light porous outer bark of the cork oak, used widely as an insulator and for stoppers for bottles, casks, etc
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a piece of cork or other material used as a stopper
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an angling float
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Also called: phellem. botany 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
adjective
verb
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to stop up (a bottle, cask, etc) with or as if with a cork; fit with a cork
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(often foll by up) to restrain
to cork up the emotions
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to black (the face, hands, etc) with burnt cork
noun
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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)
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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)
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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.
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Also called phellem
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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
Inflected Forms
Nouns
Participles
Conjugated Forms
Present
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corksimple
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corkssimple
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have corkedperfect
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has corkedperfect
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am corkingprogressive
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are corkingprogressive
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is corkingprogressive
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have been corkingperfect progressive
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has been corkingperfect progressive
Past
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corkedsimple
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had corkedperfect
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was corkingprogressive
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were corkingprogressive
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had been corkingperfect progressive
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.
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:
When Farahanipour heard about Khamenei’s death, he popped the cork from a champagne bottle and celebrated “the happiest moment of my life.”
From Los Angeles Times ● Mar. 7, 2026
A cork is when a spin is combined with a flip, resulting in an 'off-axis' direction of travel resembling a corkscrew.
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
The two countries constitute a geographical cork on Central Asia’s westward trade routes and pipelines.
From The Wall Street Journal ● Jan. 16, 2026
Shady stood still a full minute before placing the cork back in the bottle.
From "Moon Over Manifest" by Clare Vanderpool
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"The sites we've currently explored are in south-west Ireland, but it's illogical to presume that early humans just bypassed Wexford, Waterford and Cork, and ploughed on west," said Nash.
From BBC ● Sep. 4, 2026
Its Irish operations also include a virtual and augmented reality business in Cork and a data centre outside Dublin.
From Barron's ● Aug. 20, 2026
This dream home sits on a former sea-urchin farm in the wilds of Ireland’s West Cork.
From The Wall Street Journal ● Aug. 8, 2026
Young people aged 13-17 from the Oh Yeah Centre in Belfast have worked alongside young people from Music Generation in Cork.
From BBC ● Jul. 31, 2026
Cork always sounds like that, and it never fools anybody.
From "The Boy in the Black Suit" by Jason Reynolds
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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
“We didn’t do it all at the same time until like the third try,” Caruso said of popping the corks.
From Los Angeles Times ● Jun. 23, 2025
But there was no popping of champagne corks.
From BBC ● Oct. 26, 2024
Bulging photo albums, corks of wines we’d drunk at restaurants in overcoat pockets.
From "Native Speaker" by Chang-rae Lee
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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
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
Among the artefacts discovered were are a gunpowder barrel, swivel guns, a bottle of corked rum and woodworking tools.
From BBC ● Jun. 1, 2022
A chemical compound in the cork can cause a corked wine to taste musty or moldy, like wet cardboard.
From New York Times ● Dec. 30, 2021
Then, while Claire watched, she strained the dark tea and poured it carefully into small bottles, which she corked tightly.
From "Son" by Lois Lowry
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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
The MI6 building at Vauxhall Cross overlooking the river gives James Bond some exciting Thames moments in his corking speedboat chase at the beginning of The World Is Not Enough.
From The Guardian ● Jun. 11, 2020
Forty-plus boys nervously corking in laughter are still quite loud.
From "Black Swan Green" by David Mitchell
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.