cypher

cypher

[sahy-fer]
noun, verb (used without object), verb (used with object) Chiefly British.
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cipher or cypher (ˈsaɪfə)
 
n
1.  a method of secret writing using substitution or transposition of letters according to a key
2.  a secret message
3.  the key to a secret message
4.  an obsolete name for zero
5.  any of the Arabic numerals (0, 1, 2, 3, etc, to 9) or the Arabic system of numbering as a whole
6.  a person or thing of no importance; nonentity
7.  a design consisting of interwoven letters; monogram
8.  music a defect in an organ resulting in the continuous sounding of a pipe, the key of which has not been depressed
 
vb
9.  to put (a message) into secret writing
10.  (intr) (of an organ pipe) to sound without having the appropriate key depressed
11.  rare to perform (a calculation) arithmetically
 
[C14: from Old French cifre zero, from Medieval Latin cifra, from Arabic sifr zero, empty]
 
cypher or cypher
 
n
 
vb
 
[C14: from Old French cifre zero, from Medieval Latin cifra, from Arabic sifr zero, empty]

cypher (ˈsaɪfə)
 
n, —vb
a variant spelling of cipher

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