a closed book

Definition of a closed book

  1. :  a person or thing that is difficult to understand <Even to his closest friends, he was always something of a closed book.>

Word by Word Definitions

closedplay
  1. :  not open

    :  enclosed

    :  composed entirely of closed tubes or vessels

bookplay
  1. :  a set of written sheets of skin or paper or tablets of wood or ivory

    :  a set of written, printed, or blank sheets bound together between a front and back cover

    :  a long written or printed literary composition

  1. :  derived from books (see 1book 1) and not from practical experience

    :  shown by ledgers

  1. :  to register (as a name) for some future activity or condition (as to engage transportation or reserve lodgings)

    :  to schedule engagements for

    :  to set aside time for


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