4 letters
- skin9
- slue6
- slur6
- sned6
- snib8
- snip8
- snit5
- snub9
- snug8
- snye7
- sone5
- sore4
- sori4
- sorn5
- sour5
- spec10
- spic10
- spin8
- spue8
- spun9
- spur8
- sris4
- stir4
- stun6
- such10
- suck12
- sued6
- suer5
- sues5
- suet5
- suit5
- sung8
- sunk10
- sunn7
- suns6
- supe8
- sura5
- surd6
- sure5
- surf8
- syce9
- sync10
- syne7
- tens5
- tern5
- tics7
- tier4
- ties4
- tine5
- tins5
- tire4
- true5
- tuis5
- tune6
- tuns6
- turn6
- ukes9
- unai6
- unbe9
- unci9
- unco9
- unde7
- unit6
- urbs8
- urds6
- urea5
- urge7
- uric8
- urns6
- ursa5
- urus6
- used6
- user5
- uses5
- vein9
- vice11
- vier8
- vies8
- vine9
- vise8
- weir7
- wens8
- wine8
- wins8
- wire7
- wise7
- wren8
- yens7
- yins7
- zein14
- zinc17
- zins14