4 letters
- sole5
- soli5
- solo5
- sols5
- sook8
- soon5
- soot4
- sort4
- soth6
- sots4
- souk9
- soul6
- soup8
- sour5
- sous5
- spot7
- stoa4
- stob7
- stop7
- stow7
- stub8
- stud6
- stum8
- stun6
- suet5
- suit5
- sulk10
- sulu7
- sumo8
- swot7
- tall6
- taos4
- taus5
- tell6
- tels5
- thou7
- thus7
- till6
- tils5
- tods5
- toes4
- tofu8
- togs6
- toil5
- tola5
- told6
- tole5
- toll6
- tolu6
- toms7
- tons5
- took8
- tool5
- toom7
- toon5
- toot4
- tops7
- toro4
- tors4
- tosh6
- toss4
- tost4
- tots4
- tour5
- tout5
- tows7
- toyo6
- toys6
- tubs8
- tugs7
- tuis5
- tule6
- tuns6
- tups8
- tush7
- tusk9
- tuts5
- twos7
- udos6
- ulus7
- unto6
- utas5
- volt9
- wool8
- woos7
- wost7
- wots7
- zoos13