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cipher

ci·pher / ˈsīfər/ (also cy·pher) • n. 1. a secret or disguised way of writing; a code: he was writing cryptic notes in a cipher | the information may be given in cipher. ∎  a thing written in such a code. ∎  a key to such a code. 2. dated a zero; a figure 0. ∎ fig. a person or thing of no importance, esp. a person who does the bidding of others and seems to have no will of their own. 3. a monogram. 4. a continuous sounding of an organ pipe, caused by a mechanical defect. • v. 1. [tr.] put (a message) into secret writing; encode. 2. [intr.] archaic do arithmetic.

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cipher

cipher, cypher
A. .(arith.) symbol by itself denoting ‘nothing’ XIV; nonentity; Arabic numeral XVI;

B. .secret manner of writing; †hieroglyph XVI; literal device, monogram XVII;

C. .continuous sounding of a note on an organ due to mechanical defect XVIII. ME. siphre, sipher — OF. sif(f)re (mod. chiffre) — medL. cif(e)ra, partly through It. cifra, †cifera f. Arab. ṣifr ZERO, sb. use of adj. ‘empty’, f. ṣafira be empty.
Hence as vb. work sums; write in cipher. XVI. Cf. DECIPHER.

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cipher

cipher a secret or disguised way of writing; a code. The term comes (in late Middle English, in the senses ‘symbol for zero’ and ‘arabic numeral’) from Old French, based on Arabic ṣifr ‘zero’.

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cipher

cipher
1. An algorithm employed for encryption, or, in its inverse form, for decryption. See cryptography.

2. An encrypted message.

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cipher

cipher, ciphering. Continuous sounding of a note on the org. because of some mechanical defect.

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cipher

cipher: see cryptography.

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cipher

cipher See cryptography

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cipher

cipherchaffer, gaffer, Jaffa, kafir, Staffaalfalfa, alpha, Balfour, Wadi Halfacamphor, chamfer •Luftwaffe •laugher, staffer •heifer, zephyr •chafer, trefa, wafer •cockchafer •feoffor, reefer •differ, sniffer •pilfer • titfer • umbellifer • Jennifer •conifer • apocrypha • thurifer •crucifer, Lucifer •Potiphar • aquifer •cipher, encipher, fifer, Haifa, knifer, lifer •coffer, cougher, Offa, offer, proffer, quaffer, scoffer •golfer • phosphor • Forfar • Altdorfer •chauffeur, gofer, goffer, gopher, loafer, Nuku'alofa, Ophir, shofar, sofa •Fraunhofer •hoofer, loofah, opera buffa, roofer, spoofer, tufa, woofer •waterproofer •bluffer, buffer, duffer, puffer, snuffer, suffer •sulphur (US sulfur) • telegrapher •calligrapher, serigrapher •autobiographer, bibliographer, biographer, cartographer, choreographer, cinematographer, crystallographer, geographer, Hagiographa, hagiographer, iconographer, lexicographer, lithographer, oceanographer, palaeographer (US paleographer), photographer, pornographer, radiographer, stenographer, topographer, typographer •philosopher, theosopher •metaphor • Christopher • surfer •Bonhoeffer • windsurfer

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