4 letters
- scud9
- scum11
- scup11
- scut8
- shaw9
- sick11
- skag10
- skas8
- skat8
- skew11
- skua9
- slab8
- slaw8
- slub9
- snaw8
- snub9
- soak8
- sock11
- souk9
- stab7
- staw7
- stub8
- suba8
- subs8
- such10
- suck12
- sulk10
- sunk10
- sura5
- swab10
- swag9
- swam10
- swan8
- swap10
- swat7
- sway9
- swob10
- swum11
- tabs7
- tabu8
- tack11
- task8
- taus5
- taws7
- tuba8
- tubs8
- tuck12
- tusk9
- twas7
- ukes9
- upas8
- urbs8
- ursa5
- utas5
- vacs11
- vaus9
- vaws11
- wabs10
- wack14
- wads8
- waes7
- wags9
- wake11
- walk12
- wans8
- waps10
- wark11
- wars7
- wash9
- wasp10
- wast7
- wats7
- wauk12
- waul9
- waur8
- waws10
- ways9
- weak11
- webs10
- weka11
- wick14
- woks11
- wuss8
- yack13
- yaks10
- yaws9
- yuca10
- yuck14
- yuks11