| Answer | Crossword Clue |
|---|---|
| VACANT | Empty, as a lot |
| UNLEASED | Empty, as a condo |
| VACUOUS | Empty, as a stare |
| DRY | Empty, as a well |
| CLEAROUT | Empty, as a desk |
| NULL | Empty, as a set |
| INKLESS | Empty, as a fountain pen |
| NULL | Empty, as a math set |
| hollow | (of a sound) Echoing, as though made in or on an empty container |
| hollower | (of a sound) Echoing, as though made in or on an empty container |
| hollowest | (of a sound) Echoing, as though made in or on an empty container |
