• synonyms


[dee-kript, di-]
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verb (used with object)
  1. to decode or decipher.
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Origin of decrypt

First recorded in 1935–40; de- + crypt(ogram)
Related formsde·cryp·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words


British Dictionary definitions for decryption


verb (tr)
  1. to decode (a message) with or without previous knowledge of its key
  2. to make intelligible (a television or other signal) that has been deliberately distorted for transmission
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Derived Formsdecrypted, adjectivedecryption, noun

Word Origin

C20: from de- + crypt, as in cryptic
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

Word Origin and History for decryption



"to solve a cryptogram," 1936, from de- + cryptogram. Related: Decrypted; decrypting.

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Online Etymology Dictionary, © 2010 Douglas Harper