mysterycode

noun
UK /ˈmɪstəri kəʊd/
US /ˈmɪstəri koʊd/

A mysterycode is a secret set of letters or numbers that you must figure out.

The treasure map had a mysterycode that we solved together.


OTHER MEANINGS

2. A special code used in a game that players must crack to win.

Each level gives you a new mysterycode to break.

3. A confusing string of symbols that looks like a secret language.

The note was full of mysterycode that nobody could read.

4. A hidden pattern in a story that hints at what happens next.

Sharp readers noticed the mysterycode in the book's chapter titles.