4 letters
- slug8
- slum9
- slur6
- slut6
- smew10
- smit7
- smug10
- smut8
- sned6
- snib8
- snip8
- snit5
- snub9
- snug8
- snye7
- soil5
- sole5
- soli5
- some7
- sone5
- soul6
- spin8
- spue8
- spun9
- stem7
- stum8
- stun6
- such10
- sued6
- suer5
- sues5
- suet5
- sugh9
- suit5
- sulk10
- sulu7
- sumo8
- sump11
- sums8
- sung8
- sunk10
- sunn7
- suns6
- supe8
- sure5
- swim10
- swum11
- syli7
- syne7
- tels5
- tens5
- them9
- then7
- thin7
- this6
- thus7
- ties4
- tile5
- tils5
- time7
- tine5
- tins5
- tuis5
- tule6
- tune6
- tuns6
- tush7
- ughs9
- ukes9
- ulan7
- ulna7
- ulus7
- umps11
- unai6
- unau7
- unbe9
- unci9
- unde7
- unit6
- urns6
- urus6
- used6
- user5
- uses5
- veil9
- vein9
- vies8
- vile9
- vims11
- vine9
- vise8
- wens8
- when10
- whim12
- whin10
- wile8
- wine8
- wins8
- wise7
- wish9
- yens7
- yins7
- ylem10
- yule8
- zein14
- zins14