codechart

noun
UK /ˈkəʊd.tʃɑːt/
US /ˈkoʊd.tʃɑːrt/

A codechart is a picture that shows what each secret code or symbol means.

The spy used a codechart to read the hidden message.


OTHER MEANINGS

2. A chart that lists computer codes and what they stand for.

The programmer checked the codechart to find the right character code.

3. A reference sheet that pairs letters with numbers or signs.

Each student got a codechart to solve the puzzle.

4. A visual guide used to translate one set of symbols into another.

The museum map came with a codechart for the ancient writing.