Definition of cryptarithm
: an arithmetic problem in which letters have been substituted for numbers and which is solved by finding all possible pairings of digits with letters that produce a numerically correct answer
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Origin and Etymology of cryptarithm
crypt- + -arithm (as in logarithm)
First Known Use: 1943
Learn More about cryptarithm
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Britannica.com: Encyclopedia article about cryptarithm
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