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

 

cooper

 noun
noun
BrE BrE//ˈkuːpə(r)//
 
; NAmE NAmE//ˈkuːpər//
 
 
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a person who makes barrels Word Origin Middle English cowper, from Middle Dutch, Middle Low German kūper, from kūpe ‘tub, vat’, based on Latin cupa. Compare with coop.