encipher has definitions from the field of writing
1
[ verb ] (writing) convert ordinary language into code

Examples

"We should encode the message for security reasons"

Used in print

(Howard Nemerov, "Themes and Methods: The Early...)

In the work of every artist , I suppose , there may be found one or more moments which strike the student as absolutely decisive , ultimately emblematic of what it is all about ; not less strikingly so for being mysterious , as though some deeply hidden constatation of thoughts were enciphered in a single image , a single moment .

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