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.

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

(computing) Any character used to specify a function of a piece of software or hardware (such as carriage return of a printer)

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

(British spelling) Any system where colours are used to categorize elements of sets.

(British spelling) To mark items with a colour code as a means of sorting.

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

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

plural of source code