Definition of address book noun from the Oxford Advanced Learner's Dictionary

     

    address book

     noun
    noun
    BrE BrE//əˈdres bʊk//
     
    ; NAmE NAmE//əˈdres bʊk//
     
    Email
     
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  1. 1a book in which you keep addresses, phone numbers, etc.
  2. 2a computer file where you store email and Internet addresses See related entries: Email
See the Oxford Advanced American Dictionary entry: address book