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code book

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noun
  1. a book containing a list of code signals with their meanings, usually arranged alphabetically.

Origin of code book

First recorded in 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for code book

Historical Examples

  • And, tearing open the envelope, he crossed the room and pulled down a code-book.

    The Grell Mystery

    Frank Froest

  • He smoothed Prescott's crumpled telegram and reached for his code-book.

    The Lady Doc

    Caroline Lockhart

  • For a matter of ten minutes Thomson was busy with his pencil and the code-book.

    The Kingdom of the Blind

    E. Phillips Oppenheim

  • Do you go to the meeting, with the code-book as your only exhibit.

  • "Not the cipher itself—at least not a code-book as the term is generally understood," explained the Under Secretary.

    On Secret Service

    William Nelson Taft