| Solution | Length | |
|---|---|---|
| 3 letters | ||
| rat | 3 | |
| 4 letters | ||
| pest | 4 | |
| RAFF | 4 | |
| rats | 4 | |
| lice | 4 | |
| worm | 4 | |
| scum | 4 | |
| 5 letters | ||
| louse | 5 | |
| viper | 5 | |
| pests | 5 | |
| derat | 5 | |
| whelp | 5 | |
| skunk | 5 | |
| snake | 5 | |
| swine | 5 | |
| trash | 5 | |
| roach | 5 | |
| 6 letters | ||
| derats | 6 | |
| rodent | 6 | |
| rabble | 6 | |
| 7 letters | ||
| rodents | 7 | |
| primate | 7 | |
| serpent | 7 | |
| rubbish | 7 | |
| varmint | 7 | |
| reptile | 7 | |
| 8 letters | ||
| ruminant | 8 | |
| riffraff | 8 | |
| ungulate | 8 | |
| 9 letters | ||
| DISINFEST | 9 | |
| infesters | 9 | |
| scavenger | 9 | |
| quadruped | 9 | |
| 10 letters | ||
| vertebrate | 10 | |
| 17 letters | ||
| scum of the earth | 17 | |