2 entries found for cipher.
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Main Entry: 1ci·pher
Pronunciation: s-fr
Function: noun
Etymology: Middle English cipher "zero," from Latin cifra (same meaning), from Arabic sifr "empty" 1: the symbol 0 meaning the absence of all magnitude or quantity : ZERO -- see NUMBER table 2 a: a method of changing a message so as to conceal its meaning b: a message in code