/ kɔːk; NAmE kɔːrk/ noun , verb
■ noun
1.
[ U ] a light, soft material that is the thick bark of a type of Mediterranean oak tree :
a cork mat
cork tiles
2.
[ C ] a small round object made of cork or plastic, that is used for closing bottles, especially wine bottles.
—picture at bottle ➡ note at lid
■ verb
[ vn ] to close a bottle with a cork
OPP uncork
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WORD ORIGIN
Middle English : from Dutch and Low German kork , from Spanish alcorque cork-soled sandal, from Arabic al- the and (probably) Spanish Arabic qurq , qorq , based on Latin quercus oak, cork oak.