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The Best Internet Slang

sealed book

something beyond understanding and therefore unknown.
Origin of sealed book
First recorded in 1810-20 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for sealed book
Historical Examples
  • His work, a sealed book to his women before, lay open to her.

    K Mary Roberts Rinehart
  • They are not like any known writing in the world and may remain a sealed book forever.


    Znade A. Ragozin
  • Lawyer Trefy nodded to me, but his face revealed no more than a sealed book.

    The Birthright Joseph Hocking
  • To this shepherd in exile the romance of Old Edinburgh was a sealed book.

    Greyfriars Bobby Eleanor Atkinson
  • The education of the inner life was like a sealed book to them.

    True to His Home Hezekiah Butterworth
  • In here I have a sealed book in which I keep the words my friends have spoken.

    Modern Icelandic Plays

    Jhann Sigurjnsson
  • Hitherto the world outside had been a sealed book to the boys.

    For Name and Fame

    G. A. Henty
  • For three days afterward, the subject was as a sealed book between them.

    The Brentons Anna Chapin Ray
  • To thousands in Persia the literature and history of their own land is a sealed book.

    Modern Persia Mooshie G. Daniel
  • I daresay you don't understand, for life, real life, is a sealed book to you.

    The Green Mummy Fergus Hume
British Dictionary definitions for sealed book

sealed book

another term for closed book
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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