Definition of duplicate noun from the Oxford Advanced American Dictionary

 

duplicate

 noun
noun
NAmE//ˈdupləkət//
 
 
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  • one of two or more things that are the same in every detail synonym copy Is this a duplicate or the original?
  • Idioms
    in duplicate
     
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    (of documents, etc.) as two copies that are exactly the same in every detail to prepare a contract in duplicate compare triplicate
    See the Oxford Advanced Learner's Dictionary entry: duplicate

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