4 letters
- rout5
- rows7
- runs6
- runt6
- rust5
- ruts5
- sawn8
- scop10
- scot7
- scow10
- scup11
- scut8
- sent5
- sept7
- sewn8
- shop9
- shot6
- show9
- shun8
- shut7
- slop8
- slot5
- slow8
- slut6
- smut8
- snap8
- snaw8
- snip8
- snit5
- snob8
- snog7
- snot5
- snow8
- snub9
- snug8
- soap7
- soft7
- sone5
- song7
- sons5
- soon5
- soot4
- soph9
- sops7
- sorn5
- sort4
- soth6
- sots4
- souk9
- soul6
- soup8
- sour5
- sous5
- sown8
- sows7
- span8
- spat7
- spew10
- spin8
- spit7
- spot7
- spud9
- spue8
- spun9
- spur8
- staw7
- step7
- stew7
- stoa4
- stob7
- stop7
- stow7
- stub8
- stud6
- stum8
- stun6
- suet5
- suit5
- sumo8
- sump11
- sung8
- sunk10
- sunn7
- suns6
- supe8
- sups8
- swan8
- swap10
- swat7
- swob10
- swop10
- swot7
- swum11
- tans5
- taos4
- taps7
- taus5
- taws7
- tens5
- tews7
- thou7
- thus7
- tins5
- tips7
- tods5
- toes4
- tofu8
- togs6
- tolu6
- toms7
- tone5
- tong7
- tons5
- tony7
- toon5
- tope7
- toph9
- topi7
- tops7
- torn5
- tors4
- tosh6
- toss4
- tost4
- tots4
- tour5
- tout5
- town8
- tows7
- towy9
- toys6
- trop7
- trow7
- tubs8
- tugs7
- tuis5
- tump11
- tuna6
- tune6
- tung8
- tuns6
- tups8
- turn6
- tush7
- tusk9
- tuts5
- twas7
- twin8
- twos7
- typo9
- udos6
- umps11
- unco9
- undo7
- unit6
- unto6
- upas8
- updo9
- upon9
- urns6
- utas5
- vows11
- wans8
- want8
- waps10
- wasp10
- wast7
- wats7
- wens8
- went8
- wept10
- west7
- wets7
- whop12
- wino8
- wins8
- wisp10
- wist7
- wits7
- woes7
- wogs9
- woks11
- wonk12
- wons8
- wont8
- woos7
- wops10
- worn8
- wort7
- wost7
- wots7
- wows10
- wuss8
- wyns10
- yows9
- yups10