4 letters
- slit5
- slop8
- slot5
- slub9
- slue6
- slug8
- slum9
- slur6
- slut6
- smut8
- snap8
- soap7
- soar4
- sola5
- soph9
- sora4
- sort4
- soth6
- soul6
- soup8
- sour5
- spae7
- spam10
- span8
- spar7
- spas7
- spat7
- spay9
- spaz16
- spit7
- spot7
- spry9
- spud9
- spue8
- spun9
- spur8
- stab7
- stag6
- star4
- stat4
- staw7
- stay6
- step7
- stir4
- stoa4
- stop7
- stub8
- stud6
- stum8
- stun6
- suba8
- such10
- suer5
- suet5
- sugh9
- suit5
- sulk10
- sulu7
- sump11
- supe8
- sups8
- sura5
- surd6
- sure5
- surf8
- swap10
- swat7
- syph11
- tabs7
- tabu8
- tach9
- tads5
- tael5
- tags6
- tahr6
- tail5
- taka8
- tala5
- talc8
- tale5
- tali5
- talk9
- tall6
- tamp10
- tams7
- tans5
- taos4
- tapa7
- tape7
- taps7
- tare4
- tarn5
- taro4
- tarp7
- tars4
- tart4
- task8
- tass4
- tats4
- taus5
- taut5
- tavs8
- taws7
- taxa11
- teal5
- tear4
- teas4
- tela5
- tels5
- tepa7
- thae6
- than7
- that6
- thaw9
- thir6
- this6
- thou7
- thro6
- thru7
- thud8
- thug9
- thus7
- tils5
- tips7
- tirl5
- tola5
- tolu6
- toph9
- tops7
- tora4
- torr4
- tors4
- tosh6
- tour5
- trad5
- tram7
- trap7
- tray6
- trip7
- trop7
- true5
- trug7
- tsar4
- tuba8
- tubs8
- tufa8
- tugs7
- tuis5
- tule6
- tump11
- tuna6
- tuns6
- tups8
- turd6
- turf8
- turk9
- turn6
- tush7
- tusk9
- tuts5
- twas7
- tzar13
- ughs9
- ulan7
- ulna7
- ulus7
- ulva10
- umps11
- upas8
- urbs8
- urds6
- urea5
- urns6
- ursa5
- urus6
- user5
- utas5
- vara8
- vars8
- vasa8
- vast8
- vats8
- vatu9
- vaus9
- waps10
- warp10
- wars7
- wart7
- wash9
- wasp10
- wast7
- wats7
- waul9
- waur8
- whap12
- what9
- wrap10
- yaps9
- yaup10
- yups10