Dictionary![]() ![]() ci•pherPronunciation: (sī'fur), [key] —n. 1. zero. 2. any of the Arabic numerals or figures. 3. Arabic numerical notation collectively. 4. something of no value or importance. 5. a person of no influence; nonentity. 6. a secret method of writing, as by transposition or substitution of letters, specially formed symbols, or the like. Cf. cryptography. 7. writing done by such a method; a coded message. 8. the key to a secret method of writing. 9. a combination of letters, as the initials of a name, in one design; monogram. —v.i. 1. to use figures or numerals arithmetically. 2. to write in or as in cipher. —v.t. 1. to calculate numerically; figure. 2. to convert into cipher. Also, esp. Brit.,cypher. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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