Dictionary definition · cypher
noun
- a mathematical element that when added to another number yields the same number
- a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential"it looked like nothing I had ever seen before"
- a person of no influence
- a secret method of writing
- a message written in a secret code
verb
- convert ordinary language into code"We should encode the message for security reasons"
- make a mathematical calculation or computation
Source: Open English WordNet (CC BY 4.0).