Hypertext Webster Gateway: "cipher"

From Webster's Revised Unabridged Dictionary (1913) (web1913)

Cipher \Ci"pher\, v. i. [imp. & p. p. {Ciphered}; p. pr. & vb.
n. {Ciphering}.]
To use figures in a mathematical process; to do sums in
arithmetic.

``T was certain he could write and cipher too.
--Goldsmith.

From Webster's Revised Unabridged Dictionary (1913) (web1913)

Cipher \Ci"pher\, v. t.
1. To write in occult characters.

His notes he ciphered with Greek characters.
--Hayward.

2. To get by ciphering; as, to cipher out the answer.

3. To decipher. [Obs.] --Shak.

4. To designate by characters. [Obs.] --Shak.

From Webster's Revised Unabridged Dictionary (1913) (web1913)

Cipher \Ci"pher\, n. [OF. cifre zero, F. Chiffre figure (cf. Sp.
cifra, LL. cifra), fr. Ar. [,c]ifrun, [,c]afrun, empty,
cipher, zero, fr. [,c]afira to be empty. Cf. {Zero}.]
1. (Arith.) A character [0] which, standing by itself,
expresses nothing, but when placed at the right hand of a
whole number, increases its value tenfold.

2. One who, or that which, has no weight or influence.

Here he was a mere cipher. --W. Irving.

3. A character in general, as a figure or letter. [Obs.]

This wisdom began to be written in ciphers and
characters and letters bearing the forms of
creatures. --Sir W.
Raleigh.

4. A combination or interweaving of letters, as the initials
of a name; a device; a monogram; as, a painter's cipher,
an engraver's cipher, etc. The cut represents the initials
N. W.

5. A private alphabet, system of characters, or other mode of
writing, contrived for the safe transmission of secrets;
also, a writing in such characters.

His father . . . engaged him when he was very young
to write all his letters to England in cipher. --Bp.
Burnet.

{Cipher key}, a key to assist in reading writings in cipher.

From Webster's Revised Unabridged Dictionary (1913) (web1913)

Cipher \Ci"pher\, a.
Of the nature of a cipher; of no weight or influence.
``Twelve cipher bishops.'' --Milton.

From WordNet (r) 1.7 (wn)

cipher
n 1: a message written in a secret code [syn: {cypher}]
2: a mathematical element that when added to another number
yields the same number [syn: {zero}, {0}, {nought}, {cypher}]
3: a quantity of no importance; "it looked like nothing I had
ever seen before"; "reduced to nil all the work we had
done"; "we racked up a pathetic goose egg"; "it was all
for naught"; "I didn't hear zilch about it" [syn: {nothing},
{nil}, {nix}, {nada}, {null}, {aught}, {cypher}, {goose
egg}, {naught}, {zero}, {zilch}, {zip}]
4: a person of no influence [syn: {cypher}, {nobody}, {nonentity}]
5: a secret method of writing [syn: {cypher}, {cryptograph}, {secret
code}]
v 1: convert ordinary language into code; "We should encode the
message for security reasons" [syn: {encode}, {code}, {encipher},
{cypher}, {encrypt}, {inscribe}, {write in code}] [ant:
{decode}]
2: make a mathematical calculation or computation [syn: {calculate},
{cypher}, {compute}, {work out}, {reckon}, {figure}]


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