4 letters
- shop9
- shul8
- shun8
- shut7
- side5
- sipe7
- skep11
- sled6
- slue6
- sned6
- soph9
- soup8
- spae7
- spec10
- sped8
- spew10
- spud9
- spue8
- spun9
- spur8
- step7
- stud6
- such10
- sudd7
- suds6
- sued6
- suer5
- sues5
- suet5
- sugh9
- sump11
- supe8
- sups8
- surd6
- sure5
- syph11
- teds5
- thud8
- thus7
- tups8
- tush7
- udos6
- ughs9
- ukes9
- umps11
- unde7
- upas8
- updo9
- urds6
- used6
- user5
- uses5
- weds8
- yups10
- zeds14