(business) An account designator, especially one that is not purely numeric.

(genetics) The set of rules by which the sequence of bases in DNA are translated into the amino acid sequence of proteins.

(Internet) A set of codes used in sigblocks to broadcast the (typically computer-related) interests, skills, and aspirations of the poster.

A code used on DVDs to identify which region's DVD player it will play in. / A code used in DVD players to allow only DVDs being sold in that region to be played.

A binary coding system in which successive values differ in just one digit position.

(linguistics) The phenomenon or practice of alternating between two or more languages or language varieties.

present participle of code-switch

(computing) Instructions for a computer in a form the computer can directly use (i.e. which it can execute). Derived from source code by compiling or assembling and linking.

(computing) the attachment of a digital certificate (from a certification authority) to an executable program to ensure its legitimacy

Certain rules by which social intercourse is regulated among a social group, and which are founded on a regard for reputation.