4 letters
- spin8
- spit7
- spiv11
- spud9
- spue8
- spun9
- spur8
- step7
- stun6
- suck12
- sued6
- suer5
- sues5
- suet5
- suit5
- sulk10
- sump11
- sung8
- sunk10
- sunn7
- suns6
- supe8
- sups8
- sure5
- syke10
- syne7
- tens5
- ties4
- tike8
- tine5
- tins5
- tips7
- tuis5
- tune6
- tuns6
- tups8
- tusk9
- ukes9
- umps11
- unai6
- unbe9
- unci9
- unde7
- unit6
- upas8
- upon9
- urns6
- used6
- user5
- uses5
- vein9
- vies8
- vine9
- vise8
- wens8
- wine8
- wink12
- wins8
- wipe10
- wise7
- wisp10
- yens7
- yeuk11
- yins7
- yipe9
- yips9
- yuks11
- yups10
- zein14
- zeks17
- zins14
- zips16