General English


  • noun a special word which a user has to give when carrying out operations on an account by phone


  • noun a word or character which identifies a user and allows them access to a computer system


  • noun a word or series of characters which identifies a user so that he or she can access a system


  • A character string which serves for authentication or the fulfillment of other security requirements. Used, for instance, to log on to a system, make system changes, protect files, gain access to networks or specific sections of networks, and so on. Passwords such as those consisting of the actual name of a user, that of a close relative, words commonly found in dictionaries, or those having only a couple letters repeated tend to be easy to crack. Those with non-alphabetic characters, mixed case alphabetic characters, or combinations of these tend to be harder to crack. In addition, passwords should have at least six characters, ought to be frequently changed, and must never be written down.

Information & Library Science

  • noun a secret word or phrase that allows somebody to use a computer system or get into a building


  • noun words, letters or numbers used as a verbal recognition signal, usually in the form of a challenge and a reply