American English

Definition of envelope noun from the Oxford Advanced American Dictionary

  

envelope

 noun
noun
NAmE//ˈɛnvəˌloʊp//
 
, NAmE//ˈɑnvəˌloʊp//
 
 
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  • a flat paper container used for sending letters in an airmail/padded/prepaid envelope see also pay envelope, SASE
  • Idioms
    push the envelope (informal)
     
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    to go beyond the limits of what is allowed or thought to be possible He is a performer who consistently pushes the envelope of TV comedy.
    See the Oxford Advanced Learner's Dictionary entry: envelope

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