Any code whose elements may take one of three values

(computing, derogatory) Software code that has had many editors with conflicting styles, making it nearly impossible to maintain.

(video games) A line of text or series of commands which can be used to change a game's behavior, alter a character's looks and abilities, skip levels, or access other hidden features.

(telecommunications) A character code represented by dots and dashes (or short and long pulses), originally used to send messages by telegraph, later by flashes of light or by radio.

(computing) To build absolute and unchangeable values into a program such that they can only be changed by modifying the source code.

A set of rules dictating acceptable behaviour and decisions in a specified environment.

(Britain) a set of rules and regulations aimed at tourists visiting the countryside

Alternative form of codetalker

plural of code name

(computing) A numerical offset in a character set, etc., as opposed to the character or item it represents.