maincode

noun
UK /ˈmeɪn.kəʊd/
US /ˈmeɪn.koʊd/

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

The programmer fixed a bug in the maincode so the game would start.


OTHER MEANINGS

2. The main part of a secret message or system of symbols.

They hid the treasure map inside the maincode of the old book.

3. The primary set of rules used to unlock or operate something.

Only the captain knew the maincode for the ship's safe.

4. The central pattern or key in a coded puzzle.

Solving the maincode revealed the answer to the riddle.