corecode

noun
UK /ˈkɔː.kəʊd/
US /ˈkɔːr.koʊd/

The most important set of instructions that makes a computer program work.

The programmer fixed a bug in the corecode so the game would run again.


OTHER MEANINGS

2. The essential rules or values that guide how a group or system operates.

Honesty is part of the corecode of our team.

3. A basic set of symbols or signals used to send secret messages.

The spies shared a corecode to read each other's notes.

4. The central part of a coding system that other parts depend on.

If you change the corecode, every other part must be updated too.