[syn: calculate, cipher, cypher, compute, work out, reckon, figure]
The Collaborative International Dictionary of English v.0.48:
Cypher \Cy"pher\ (s?"f?r), n. & v.
   See Cipher.
   [1913 Webster]
WordNet (r) 3.0 (2006):
cypher
    n 1: a mathematical element that when added to another number
         yields the same number [syn: zero, 0, nought,
         cipher, cypher]
    2: 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, cipher, cypher, goose egg,
       naught, zero, zilch, zip, zippo]
    3: a person of no influence [syn: cipher, cypher, nobody,
       nonentity]
    4: a secret method of writing [syn: cipher, cypher,
       cryptograph, secret code]
    5: a message written in a secret code [syn: cipher, cypher]
    v 1: convert ordinary language into code; "We should encode the
         message for security reasons" [syn: code, encipher,
         cipher, cypher, encrypt, inscribe, write in code]
    2: make a mathematical calculation or computation [syn:
       calculate, cipher, cypher, compute, work out,
       reckon, figure]