| Clue | Source | Date |
|---|---|---|
| Sealed with putty | ||
| Kept from leaking, in a way | LA Times Daily | 15 Sep 2021 |
| Kept from leaking, in a way | The Washington Post | 15 Sep 2021 |
| Filled in some gaps | New York Times | 26 Mar 2021 |
| Provided with a waterproof seal | Wall Street Journal | 19 Jul 2016 |
| Sealed around windows, in a way | ||
| Applied oakum to | ||
| Made airtight, as a window frame | ||
| Weather-stripped, in a way | ||
| Weatherproofed, in a way | ||
| Made watertight | ||
| Weather-stripped | ||
| Made watertight | ||
| Made watertight | ||
| Applied oakum to | ||
| Patched cracks with oakum. |