CODE

noun

1. A short symbol, often with little relation to the item it represents.
2. A body of law, sanctioned by legislation, in which the rules of law to be specifically applied by the courts are set forth in systematic form; a compilation of laws by public authority; a digest.
3. Any system of principles, rules or regulations relating to one subject.

verb

1. To write software programs.
2. To add codes to a dataset.
3. To categorise by assigning identifiers from a schedule, for example CPT coding for medical insurance purposes.