| Solution | Length | |
|---|---|---|
| 4 letters | ||
| soil | 4 | |
| spot | 4 | |
| reek | 4 | |
| slag | 4 | |
| blur | 4 | |
| smut | 4 | |
| blot | 4 | |
| soot | 4 | |
| slur | 4 | |
| 5 letters | ||
| smear | 5 | |
| taint | 5 | |
| stain | 5 | |
| sully | 5 | |
| steam | 5 | |
| speck | 5 | |
| smoke | 5 | |
| 6 letters | ||
| SCORIA | 6 | |
| splash | 6 | |
| smirch | 6 | |
| smooch | 6 | |
| stigma | 6 | |
| 7 letters | ||
| spatter | 7 | |
| splotch | 7 | |
| tarnish | 7 | |
| 8 letters | ||
| splatter | 8 | |
| reproach | 8 | |
| 9 letters | ||
| reprimand | 9 | |
| 10 letters | ||
| reflection | 10 | |
| 11 letters | ||
| water vapor | 11 | |