4 letters
- snob8
- snog7
- snot5
- snow8
- snub9
- snug8
- sobs7
- soda5
- sods5
- sold6
- sone5
- song7
- sons5
- soon5
- sorb7
- sord5
- sorn5
- souk9
- soul6
- soup8
- sour5
- sous5
- sown8
- spud9
- spun9
- stob7
- stub8
- stud6
- stun6
- suba8
- subs8
- sudd7
- suds6
- sued6
- sumo8
- sung8
- sunk10
- sunn7
- suns6
- surd6
- swob10
- sybo9
- tods5
- tons5
- tubs8
- tuns6
- udos6
- umbo11
- unbe9
- unco9
- unde7
- undo7
- undy9
- unto6
- updo9
- upon9
- urbs8
- urds6
- urns6
- used6
- wons8
- yobs9
- yods7
- yond8