4 letters
- skis8
- slim8
- slip8
- slue6
- slum9
- smew10
- smit7
- smug10
- smut8
- snap8
- sned6
- snib8
- snip8
- snit5
- snub9
- snug8
- snye7
- some7
- sone5
- sons5
- soph9
- sops7
- soup8
- sous5
- spae7
- spam10
- span8
- spas7
- spec10
- sped8
- spew10
- spic10
- spik11
- spin8
- spit7
- spiv11
- spud9
- spue8
- spun9
- spur8
- sris4
- stem7
- step7
- stum8
- stun6
- subs8
- such10
- suds6
- sued6
- suer5
- sues5
- suet5
- sugh9
- suit5
- sumo8
- sump11
- sums8
- sung8
- sunk10
- sunn7
- suns6
- supe8
- sups8
- suqs14
- sure5
- suss5
- swim10
- swum11
- syne7
- syph11
- teem7
- teen5
- tees4
- temp10
- tens5
- thee6
- them9
- then7
- thin7
- this6
- thus7
- ties4
- time7
- tine5
- tins5
- tips7
- tuis5
- tump11
- tune6
- tuns6
- tups8
- tush7
- ughs9
- ukes9
- umps11
- unai6
- unbe9
- unci9
- unde7
- unit6
- upas8
- upon9
- urns6
- used6
- user5
- uses5
- veep11
- vees8
- vein9
- vies8
- vims11
- vine9
- vise8
- ween8
- weep10
- wees7
- wens8
- whee9
- when10
- whim12
- whin10
- whip12
- wimp13
- wine8
- wins8
- wipe10
- wise7
- wish9
- wisp10
- wiss7
- wuss8
- yens7
- yins7
- yipe9
- yips9
- yups10
- zees13
- zein14
- zins14
- zips16