| Answer | Crossword Clue |
|---|---|
| ZEROS | Ciphers |
| CODES | Ciphers |
| NULLS | Ciphers |
| NOUGHTS | Ciphers |
| CODES | Ciphers. |
| OUGHTS | Ciphers |
| SECRETCODES | Ciphers |
| ZEROES | Ciphers. |
| ZEROS | Ciphers. |
| CODED | In ciphers |
| CODES | Ciphers, say |
| ENCODE | Put in ciphers |
| CODES | Kin of ciphers |
| NULLS | Dummy symbols in ciphers |
| NULLS | Dummy letters in ciphers |
