4 letters
- runs6
- runt6
- rust5
- ruts5
- scot7
- scut8
- sent5
- sett4
- shot6
- shun8
- shut7
- slob8
- slot5
- slub9
- slut6
- smut8
- snib8
- snit5
- snob8
- snog7
- snot5
- snow8
- snub9
- snug8
- sobs7
- soft7
- sone5
- song7
- sons5
- soon5
- soot4
- sorb7
- sorn5
- sort4
- soth6
- sots4
- souk9
- soul6
- soup8
- sour5
- sous5
- sown8
- spot7
- spun9
- stab7
- stat4
- stet4
- stoa4
- stob7
- stop7
- stow7
- stub8
- stud6
- stum8
- stun6
- suba8
- subs8
- suet5
- suit5
- sulu7
- sumo8
- sung8
- sunk10
- sunn7
- suns6
- swob10
- swot7
- sybo9
- tabs7
- tabu8
- tans5
- taos4
- tats4
- taus5
- taut5
- tens5
- tent5
- test4
- tets4
- thou7
- thus7
- tins5
- tint5
- tits4
- toby9
- tods5
- toes4
- toft7
- tofu8
- togs6
- toit4
- tolu6
- tomb10
- toms7
- tone5
- tong7
- tons5
- tony7
- toon5
- toot4
- tops7
- torn5
- tors4
- tort4
- tosh6
- toss4
- tost4
- tote4
- tots4
- tour5
- tout5
- town8
- tows7
- toys6
- trot4
- tuba8
- tube8
- tubs8
- tuft8
- tugs7
- tuis5
- tuna6
- tune6
- tung8
- tuns6
- tups8
- turn6
- tush7
- tusk9
- tuts5
- tutu6
- twos7
- udos6
- ulus7
- umbo11
- unau7
- unbe9
- unco9
- undo7
- unit6
- unto6
- upon9
- urbs8
- urns6
- urus6
- utas5
- wons8
- wont8
- wost7
- wots7
- yobs9