4 letters
- sola5
- sold6
- sole5
- soli5
- solo5
- sols5
- sone5
- song7
- sons5
- soon5
- soph9
- sops7
- sorn5
- soul6
- soup8
- sown8
- soya6
- soys6
- span8
- spay9
- spin8
- spot7
- spry9
- spun9
- stop7
- swop10
- sybo9
- syli7
- sync10
- syne7
- syph11
- tons5
- tony7
- tops7
- toys6
- typo9
- upon9
- wons8
- wops10
- wyns10
- yaps9
- yelp10
- yens7
- yins7
- yips9
- yobs9
- yods7
- yoks10
- yolk11
- yond8
- yoni7
- yowl10
- yows9
- yups10