| Answer | Crossword Clue |
|---|---|
| AUDIBLE | Not silent |
| unsilent | not silent |
| unspeaking | Not speaking; silent |
| aphonics | mouthed but not spoken; noiseless; silent |
| aphonic | mouthed but not spoken; noiseless; silent |
| mum | do not reveal what you know (about something); keep silent |
| tacet | be silent (directing an instrument or voice not to play or sing) |
