Quick definitions from WordNet (cipher)
▸ noun: a message written in a secret code
▸ noun: a secret method of writing
▸ noun: a person of no influence
▸ noun: a mathematical element that when added to another number yields the same number
▸ noun: a quantity of no importance
▸ verb: make a mathematical calculation or computation
▸ verb: convert ordinary language into code
▸ Also see cipher
▸ noun: a message written in a secret code
▸ noun: a secret method of writing
▸ noun: a person of no influence
▸ noun: a mathematical element that when added to another number yields the same number
▸ noun: a quantity of no importance
▸ verb: make a mathematical calculation or computation
▸ verb: convert ordinary language into code
▸ Also see cipher