encodingwheel
nounUK /ɪnˈkəʊdɪŋ wiːl/
US /ɪnˈkoʊdɪŋ wiːl/
A wheel with letters or symbols that helps you turn a message into a secret code.
The spy used an encoding wheel to hide the message from her friends.
RELATED WORDS
OTHER MEANINGS
2. A rotating dial used in puzzles and games to create or solve secret messages.
The escape room gave us an encoding wheel to crack the final clue.
3. A mechanical part in old machines that converts signals into a set pattern.
The engineer adjusted the encoding wheel inside the telegraph device.
4. A teaching tool that shows how letters shift to make simple ciphers.
Our teacher handed out an encoding wheel so we could write notes in Caesar cipher.