(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.

(retail) An alphanumeric code used to identify the offer associated with a coupon.

The official road safety manual for the United Kingdom, covering pedestrians, animals, cyclists, motorcyclists and drivers. / The rules set forth in the Highway Code.

(US, Australia, Philippines) A prefix appended to a telephone number indicating the geographical area.

(business, espionage, military) A name used to clandestinely identify somebody or something, either for military or espionage purposes, or for commercial confidentiality.

(programming) A block of source code, often one that is delimited by brackets or in some similar way, depending on the programming language.