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sealed book

American  

noun

  1. something beyond understanding and therefore unknown.


sealed book British  

noun

  1. 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

Etymology

Origin of sealed book

First recorded in 1810–20

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

To his fellow-passengers Wagram was a sealed book, in that all conjectures as to his identity and his circumstance failed.

From The Red Derelict by Bertram Mitford

It will be seen, hence, that the career of the author was a sealed book to all but himself.

From Memoirs of Service Afloat, During the War Between the States by Raphael Semmes

Never before had I realised so fully that he was the possessor of gifts the nature of which was as a sealed book to the common mortal.

From Mrs. Fitz by J. C. Snaith

It has been asserted by some writers that Beethoven was insensible to the charms of woman, and that love was to him a sealed book!

From Beethoven: A Memoir (2nd Ed.) by Elliott Graeme

Perhaps I cannot open my subject in any better way than by giving a few reasons why a knowledge of The Beyond has remained a sealed book for centuries.

From Beyond by Henry Seward Hubbard

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