signcipher
nounUK /ˈsaɪnˌsaɪfə/
US /ˈsaɪnˌsaɪfər/
A signcipher is a secret code where signs or symbols stand for letters or words.
The detective found a signcipher carved into the old wooden door.
RELATED WORDS
OTHER MEANINGS
2. A system of symbolic marks used to hide a message.
The pirates used a signcipher to mark where the treasure was buried.
3. A written clue made of pictures or signs instead of letters.
She solved the signcipher on the treasure map by matching each picture to a letter.
4. The act of turning signs into a secret message.
Their signcipher kept the club's plans hidden from everyone else.