4 letters
- smug10
- smut8
- snag7
- snap8
- snaw8
- snib8
- snip8
- snit5
- snot5
- snub9
- snug8
- soap7
- soma7
- sons5
- sops7
- sots4
- soup8
- sous5
- spae7
- spam10
- span8
- spar7
- spas7
- spat7
- spay9
- spaz16
- spic10
- spik11
- spin8
- spit7
- spiv11
- spot7
- spud9
- spue8
- spun9
- spur8
- sris4
- stab7
- stag6
- star4
- stat4
- staw7
- stay6
- stem7
- step7
- stir4
- stoa4
- stop7
- stub8
- stud6
- stum8
- stun6
- suba8
- subs8
- suds6
- sues5
- suet5
- suit5
- sumo8
- sump11
- sums8
- sung8
- sunk10
- sunn7
- suns6
- supe8
- sups8
- suqs14
- sura5
- suss5
- swam10
- swan8
- swap10
- swat7
- swim10
- swum11
- tabs7
- tabu8
- tads5
- tags6
- tail5
- tain5
- tali5
- tame7
- tamp10
- tams7
- tang7
- tank9
- tans5
- taos4
- tapa7
- tape7
- taps7
- tarn5
- tarp7
- tars4
- task8
- tass4
- tats4
- taus5
- taut5
- tavs8
- taws7
- taxi11
- team7
- teas4
- temp10
- tens5
- tepa7
- than7
- thin7
- this6
- thus7
- tics7
- ties4
- tiki8
- tils5
- time7
- tine5
- ting7
- tins5
- tint5
- tiny7
- tipi7
- tips7
- titi4
- tits4
- toms7
- tons5
- topi7
- tops7
- toss4
- tram7
- trap7
- trim7
- trip7
- tsar4
- tsks8
- tuba8
- tubs8
- tufa8
- tugs7
- tuis5
- tump11
- tuna6
- tune6
- tung8
- tuns6
- tups8
- turn6
- tush7
- tusk9
- tuts5
- twas7
- twin8
- tyin7
- ulan7
- ulna7
- umps11
- unai6
- unau7
- unci9
- unit6
- unto6
- upas8
- upon9
- urns6
- ursa5
- uses5
- utas5
- vain9
- vamp14
- vans9
- vast8
- vats8
- vatu9
- vaus9
- vims11
- vina9
- visa8
- vita8
- wain8
- wait7
- wans8
- want8
- waps10
- wasp10
- wast7
- wats7
- wimp13
- wins8
- wisp10
- wiss7
- wist7
- wits7
- wuss8
- yams9
- yaps9
- yaup10
- yins7