Definition of key code in English:

key code

noun

  • 1The unique identifying code number given to a particular cut or design for a key.

  • 2A code number or sequence of characters which allows something to be opened, operated, accessed, etc., especially by means of an electronic device.

Origin

1940s; earliest use found in Popular Mechanics. From key + code.

Pronunciation

key code

/ˈkiː kəʊd/