| Answer | Crossword Clue |
|---|---|
| ROADSIGNS | Messages for drivers |
| CRYPTS | Coded messages, for short |
| CODES | Signals for sending messages. |
| INBOX | Place for new messages |
| INVISIBLEINK | Medium for secret messages |
| SECRETCODE | Language for private messages |
| CALLSIN | Checks for messages, perhaps |
| WIDGET | Small container for carrying messages. |
| APBS | Police radio messages, for short |
| Social network for short messages | |
| Forum for 140-character messages | |
| NORSECODE | Viking's method for sending messages? |
| MAGNETS | Aids for affixing messages on refrigerators |
