decoder ring
decoder ring · decoder rings
A device consisting of two concentric rings of letters of the alphabet, one of which…A device consisting of two concentric rings of letters of the alphabet, one of which can be rotated, so as to encode and decode messages according to a simple substitution cipher.
Meaning
1 sensesA device consisting of two concentric rings of letters of the alphabet, one of which can be rotated, so as to encode and decode messages according to a simple substitution cipher.
Forms
plural: decoder rings| Singular | decoder ring |
|---|---|
| Plural | decoder rings |
regular