4 letters
- spur8
- sris4
- step7
- stir4
- such10
- sued6
- suer5
- sues5
- suet5
- sugh9
- suit5
- sump11
- supe8
- sups8
- sura5
- surd6
- sure5
- surf8
- syph11
- thir6
- this6
- thru7
- thus7
- tier4
- ties4
- tips7
- tire4
- trip7
- true5
- tuis5
- tups8
- tush7
- ughs9
- ukes9
- umps11
- upas8
- urbs8
- urds6
- urea5
- urge7
- uric8
- urns6
- ursa5
- urus6
- used6
- user5
- uses5
- vier8
- vies8
- vise8
- weir7
- whip12
- whir9
- wipe10
- wire7
- wise7
- wish9
- wisp10
- yipe9
- yips9
- yups10
- zips16