4 letters
- sink9
- sire4
- skee8
- skeg10
- skep11
- skew11
- skin9
- skua9
- slue6
- slur6
- sned6
- snub9
- snug8
- snye7
- sock11
- soke8
- sone5
- sore4
- sorn5
- souk9
- sour5
- spec10
- spue8
- spun9
- spur8
- stun6
- such10
- suck12
- sued6
- suer5
- sues5
- suet5
- sulk10
- sung8
- sunk10
- sunn7
- suns6
- supe8
- sura5
- surd6
- sure5
- surf8
- syce9
- syke10
- sync10
- syne7
- teen5
- tees4
- tens5
- tern5
- tree4
- trek8
- true5
- tuck12
- tune6
- tuns6
- turk9
- turn6
- tusk9
- ukes9
- unbe9
- unci9
- unco9
- unde7
- urbs8
- urds6
- urea5
- urge7
- uric8
- urns6
- ursa5
- urus6
- used6
- user5
- uses5
- veer8
- vees8
- week11
- ween8
- weer7
- wees7
- wens8
- were7
- wren8
- yens7
- yerk10
- yeuk11
- yuck14
- yuks11
- zees13
- zeks17
- zerk17