4 letters
- sain5
- salt5
- sand6
- sane5
- sang7
- sank9
- sans5
- sash6
- sate4
- sati4
- saul6
- sawn8
- scan8
- scat7
- scut8
- seat4
- sent5
- seta4
- shad7
- shag8
- shah8
- sham9
- shat6
- shaw9
- shay8
- shea6
- shin7
- shit6
- shot6
- shul8
- shun8
- shut7
- sinh7
- sith6
- skat8
- skua9
- slat5
- slut6
- smut8
- snag7
- snap8
- snaw8
- snit5
- snot5
- snub9
- snug8
- soth6
- span8
- spat7
- spun9
- stab7
- stag6
- star4
- stat4
- staw7
- stay6
- stoa4
- stub8
- stud6
- stum8
- stun6
- suba8
- such10
- suet5
- sugh9
- suit5
- sung8
- sunk10
- sunn7
- suns6
- sura5
- swan8
- swat7
- tabs7
- tabu8
- tach9
- tads5
- tags6
- tahr6
- tain5
- tams7
- tang7
- tank9
- tans5
- taos4
- taps7
- tarn5
- tars4
- task8
- tass4
- tats4
- taus5
- taut5
- tavs8
- taws7
- teas4
- tens5
- thae6
- than7
- that6
- thaw9
- then7
- thin7
- this6
- thou7
- thru7
- thud8
- thug9
- thus7
- tins5
- tons5
- tosh6
- tsar4
- tuba8
- tubs8
- tufa8
- tugs7
- tuis5
- tuna6
- tune6
- tung8
- tuns6
- tups8
- turn6
- tush7
- tusk9
- tuts5
- twas7
- ughs9
- ulan7
- ulna7
- unai6
- unau7
- unit6
- unto6
- upas8
- urns6
- ursa5
- utas5
- vans9
- vast8
- vats8
- vatu9
- vaus9
- wans8
- want8
- wash9
- wast7
- wats7
- what9
- yuan8