4 letters
- seep7
- seer4
- sees4
- self8
- sels5
- sene5
- sera4
- sere4
- serf7
- sers4
- shea6
- shes6
- shoe6
- shop9
- shul8
- shun8
- slap8
- sloe5
- slop8
- slue6
- slur6
- snap8
- soap7
- soar4
- sofa7
- sola5
- sole5
- sols5
- sone5
- sons5
- soph9
- sops7
- sora4
- sore4
- sorn5
- soul6
- soup8
- sour5
- sous5
- spae7
- span8
- spar7
- spas7
- spec10
- spue8
- spun9
- spur8
- such10
- suer5
- sues5
- suns6
- supe8
- sups8
- sura5
- sure5
- surf8
- ulan7
- ulna7
- unco9
- upas8
- upon9
- urea5
- urns6
- ursa5
- user5
- uses5