4 letters
- scad8
- scar7
- scry9
- scud9
- scum11
- scup11
- scut8
- secs7
- seis4
- sers4
- shri6
- sibs7
- sice7
- sick11
- sics7
- side5
- sild6
- sims7
- sins5
- sips7
- sire4
- sirs4
- sits4
- skid9
- skis8
- slid6
- slur6
- sods5
- sord5
- sori4
- sour5
- sous5
- spic10
- spud9
- spur8
- sris4
- stir4
- stud6
- subs8
- such10
- suck12
- sudd7
- suds6
- sued6
- suer5
- sues5
- suit5
- sums8
- suns6
- sups8
- suqs14
- sura5
- surd6
- sure5
- surf8
- suss5
- tics7
- tuis5
- turd6
- udos6
- unci9
- urbs8
- urds6
- uric8
- urns6
- ursa5
- urus6
- used6
- user5
- uses5
- wiss7
- wuss8
- yids7
- yird7