4 letters
- puts8
- robs7
- rotl5
- rots4
- rout5
- rubs8
- rust5
- ruts5
- salt5
- saul6
- scot7
- scut8
- shot6
- shul8
- shut7
- silo5
- silt5
- slab8
- slat5
- slit5
- slob8
- sloe5
- slog7
- slop8
- slot5
- slow8
- slub9
- slue6
- slug8
- slum9
- slur6
- slut6
- smut8
- snob8
- snot5
- snub9
- sobs7
- soft7
- soil5
- sola5
- sold6
- sole5
- soli5
- solo5
- sols5
- soot4
- sorb7
- sort4
- soth6
- sots4
- souk9
- soul6
- soup8
- sour5
- sous5
- spot7
- stab7
- stoa4
- stob7
- stop7
- stow7
- stub8
- stud6
- stum8
- stun6
- suba8
- subs8
- suet5
- suit5
- sulk10
- sulu7
- sumo8
- swob10
- swot7
- sybo9
- tabs7
- tabu8
- taos4
- taus5
- tels5
- thou7
- thus7
- tils5
- toby9
- tods5
- toes4
- tofu8
- togs6
- toil5
- tola5
- told6
- tole5
- toll6
- tolu6
- tomb10
- toms7
- tons5
- tool5
- tops7
- tors4
- tosh6
- toss4
- tost4
- tots4
- tour5
- tout5
- tows7
- toys6
- tuba8
- tube8
- tubs8
- tugs7
- tuis5
- tule6
- tuns6
- tups8
- tush7
- tusk9
- tuts5
- tutu6
- twos7
- udos6
- ulus7
- umbo11
- unto6
- urbs8
- urus6
- utas5
- volt9
- wost7
- wots7
- yobs9