4 letters
- skim11
- skit8
- skua9
- slam8
- slat5
- slum9
- slut6
- smit7
- smug10
- smut8
- soak8
- soma7
- souk9
- spam10
- spat7
- stab7
- stag6
- star4
- stat4
- staw7
- stay6
- stem7
- stoa4
- stub8
- stud6
- stum8
- stun6
- suba8
- suck12
- suet5
- suit5
- sulk10
- sulu7
- sumo8
- sump11
- sums8
- sunk10
- suqs14
- sura5
- swam10
- swat7
- swum11
- tabs7
- tabu8
- tack11
- tads5
- tags6
- taka8
- take8
- talk9
- tame7
- tamp10
- tams7
- tank9
- tans5
- taos4
- taps7
- tars4
- task8
- tass4
- tats4
- taus5
- taut5
- tavs8
- taws7
- teak8
- team7
- teas4
- thus7
- toms7
- tram7
- tsar4
- tsks8
- tuba8
- tubs8
- tuck12
- tufa8
- tugs7
- tuis5
- tump11
- tuna6
- tuns6
- tups8
- turk9
- tush7
- tusk9
- tuts5
- tutu6
- twas7
- ukes9
- ulus7
- umps11
- unau7
- upas8
- ursa5
- urus6
- utas5
- vast8
- vats8
- vatu9
- vaus9
- wast7
- wats7
- wauk12
- yaks10
- yams9
- yuks11