mirrorcode
nounUK /ˈmɪrə.kəʊd/
US /ˈmɪrər.koʊd/
A secret code that looks the same when you flip it like a mirror.
The spy wrote a mirrorcode so only someone holding it up to a mirror could read it.
RELATED WORDS
OTHER MEANINGS
2. A way of writing letters backward so they read correctly in a mirror.
Leonardo da Vinci often used mirrorcode in his notebooks.
3. A puzzle where words or numbers are flipped to hide a message.
The kids solved the mirrorcode by holding the paper up to the window.
4. A matching code used by two people so each can check the other's message.
The twins made a mirrorcode so their notes always matched.