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1a 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 a cipher. 2 dated a zero; a figure 0. a person or thing of no importance, especially a person who does the bidding of others and seems to have no will of their own.
4a continuous sounding of an organ pipe, caused by a mechanical defect.
1 [with object] put (a message) into secret writing; encode. 2 [no object] archaic do arithmetic.