| Clue | Source | Date |
|---|---|---|
| "Silence!" | Newsday | 26 May 2024 |
| Result of complete sound cancellation | New York Times | 16 May 2023 |
| Silence | Universal | 27 Mar 2020 |
| Silence | ||
| "Silence!" | ||
| Audio equipment ad words | ||
| Audio equipment ad words | ||
| Ideal for engines and audio equipment | ||
| Library or hospital request |