Cork

the outer bark of an oak, Quercus suber, of Mediterranean countries, used for making stoppers for bottles, floats, etc.
Also called cork oak. the tree itself.
something made of cork.
a piece of cork, rubber, or the like used as a stopper, as for a bottle.
Angling. a small float to buoy up a fishing line or to indicate that a fish is biting.
Also called phellem, suber. Botany. an outer tissue of bark produced by and exterior to the phellogen.
to provide or fit with cork or a cork.
to stop with or as if with a cork (often followed by up).
to blacken with burnt cork.
blow / pop one’s cork, Informal. to lose one’s temper; release one’s emotional or physical tension.
a county in Munster province, in S Republic of Ireland. 2881 sq. mi. (7460 sq. km).
a seaport in and the county seat of Cork, in the S part.
Contemporary Examples

Pure Gold: Snowboarding With Shaun White Bob Simon January 27, 2010
The Night Vince Lombardi Lay Awake Brooding Over a 49-0 Win W.C. Heinz January 24, 2014
Designer Champagne Amy Cortese December 28, 2009
World’s Most Extravagant BYOB Sophie Menin February 6, 2011
Neil Patrick Harris Hosts the Tonys Kevin Sessums June 9, 2011

Historical Examples

The Children’s Book of Christmas Stories Various
Directions for Cookery, in its Various Branches Eliza Leslie
The Sunny Side of Ireland John O’Mahony and R. Lloyd Praeger
Directions for Cookery, in its Various Branches Eliza Leslie
The Catholic World. Volume II; Numbers 7, 8, 9, 10, 11, 12. E. Rameur

noun
the thick light porous outer bark of the cork oak, used widely as an insulator and for stoppers for bottles, casks, etc
a piece of cork or other material used as a stopper
an angling float
(botany) Also called phellem. 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
made of cork related adjective suberose
verb (transitive)
to stop up (a bottle, cask, etc) with or as if with a cork; fit with a cork
(often foll by up) to restrain: to cork up the emotions
to black (the face, hands, etc) with burnt cork
noun
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)
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)
n.
v.
cork
(kôrk)