| Clue | Source | Date |
|---|---|---|
| Make easier to hear, in a way | New York Times | 06 Mar 2023 |
| Turn up, as the volume | New York Times | 14 Nov 2019 |
| Turn up, as the volume | ||
| Increase in volume | Premier Sunday | 08 Oct 2017 |
| Turn up | ||
| Turn up the sound | ||
| Increase in volume. | ||
| Turn up the volume | ||
| Grow audible. |