visualcipher

noun
UK /ˈvɪʒuəlˌsaɪfə/
US /ˈvɪʒuəlˌsaɪfər/

A visualcipher is a secret code that uses pictures instead of letters.

The treasure map had a visualcipher that only the pirates could read.


OTHER MEANINGS

2. A method of hiding messages inside images so they are hard to notice.

The spy used a visualcipher to hide the plan in a photo.

3. A puzzle where shapes or icons stand for words or sounds.

The magazine's visualcipher took us an hour to solve.

4. A system that turns text into picture symbols for secret sharing.

Kids made a visualcipher with emojis to pass notes in class.