'Cypher' definitions:

A mathematical element that when added to another number yields the same number [syn: zero, 0, nought, cipher, cypher]

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]

A person of no influence [syn: cipher, cypher, nobody, nonentity]

A secret method of writing [syn: cipher, cypher, cryptograph, secret code]

A message written in a secret code [syn: cipher, cypher]

Convert ordinary language into code; "We should encode the message for security reasons" [syn: code, encipher, cipher, cypher, encrypt, inscribe, write in code]

Make a mathematical calculation or computation [syn: calculate, cipher, cypher, compute, work out, reckon, figure]