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.

(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.