4 letters
- sice7
- sick11
- sics7
- side5
- sike8
- sims7
- sine5
- sins5
- sipe7
- sips7
- sire4
- sirs4
- site4
- sits4
- size13
- skis8
- slub9
- slue6
- slur6
- snib8
- snub9
- sobs7
- sorb7
- sore4
- sori4
- sour5
- sous5
- spec10
- spic10
- spue8
- spur8
- sris4
- stir4
- stub8
- suba8
- subs8
- such10
- suck12
- suds6
- sued6
- suer5
- sues5
- suet5
- suit5
- sums8
- suns6
- supe8
- sups8
- suqs14
- sura5
- surd6
- sure5
- surf8
- suss5
- syce9
- tics7
- tier4
- ties4
- tire4
- true5
- tube8
- tubs8
- tuis5
- ukes9
- unbe9
- unci9
- urbs8
- urds6
- urea5
- urge7
- uric8
- urns6
- ursa5
- urus6
- used6
- user5
- uses5
- verb11
- vibe11
- vice11
- vier8
- vies8
- vise8
- webs10
- weir7
- wire7
- wise7
- wiss7
- wuss8
- yirr6
- zebu17