4 letters
- sels5
- sers4
- shah8
- shes6
- ship9
- shmo9
- shod7
- shoe6
- shog8
- shoo6
- shop9
- shot6
- show9
- shri6
- shul8
- shun8
- shut7
- silo5
- sips7
- sirs4
- slap8
- slip8
- slob8
- sloe5
- slog7
- slop8
- slot5
- slow8
- slub9
- slue6
- slug8
- slum9
- slur6
- slut6
- soap7
- soar4
- sobs7
- sods5
- soil5
- sola5
- sold6
- sole5
- soli5
- solo5
- sols5
- sons5
- sook8
- soon5
- soot4
- soph9
- sops7
- sora4
- sorb7
- sord5
- sore4
- sori4
- sorn5
- sort4
- soth6
- sots4
- souk9
- soul6
- soup8
- sour5
- sous5
- sows7
- soys6
- spar7
- spas7
- spot7
- spry9
- spud9
- spue8
- spun9
- spur8
- sris4
- stop7
- subs8
- such10
- suds6
- suer5
- sues5
- sugh9
- sulk10
- sulu7
- sumo8
- sump11
- sums8
- suns6
- supe8
- sups8
- suqs14
- sura5
- surd6
- sure5
- surf8
- suss5
- swop10
- syph11
- thou7
- thro6
- thru7
- thus7
- tolu6
- tool5
- toph9
- tops7
- toro4
- tors4
- tosh6
- toss4
- tour5
- trop7
- tups8
- tush7
- udos6
- ughs9
- ulus7
- umps11
- upas8
- updo9
- upon9
- urbs8
- urds6
- urns6
- ursa5
- urus6
- user5
- uses5
- whop12
- wool8
- woos7
- wops10
- wuss8
- your7
- yups10
- zoos13