English

Definition of cask noun from the Oxford Advanced Learner's Dictionary

 

cask

 noun
noun
BrE BrE//kɑːsk//
 
; NAmE NAmE//kæsk//
 
 
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a small wooden barrel used for storing liquids, especially alcoholic drinks; the amount contained in a cask a wine cask/a cask of wine Word Origin early 16th cent.: from French casque or Spanish casco ‘helmet’. The current senses appear only in English; from the late 16th to the late 18th centuries the word also denoted a helmet.Extra examples The beer was transported in cask. a cask of beer beer brewed in casks The whisky is matured in oak casks for three years.
See the Oxford Advanced American Dictionary entry: cask