4 letters
- skip11
- skit8
- slap8
- slat5
- slip8
- slit5
- smit7
- snap8
- snip8
- snit5
- soap7
- spae7
- spam10
- span8
- spar7
- spas7
- spat7
- spay9
- spaz16
- spic10
- spik11
- spin8
- spit7
- spiv11
- spot7
- stab7
- stag6
- star4
- stat4
- staw7
- stay6
- step7
- stir4
- stoa4
- stop7
- suit5
- swap10
- swat7
- tabs7
- tads5
- tags6
- tail5
- tain5
- tali5
- tamp10
- tams7
- tans5
- taos4
- tapa7
- tape7
- taps7
- tarp7
- tars4
- task8
- tass4
- tats4
- taus5
- tavs8
- taws7
- taxi11
- teas4
- tepa7
- this6
- tics7
- ties4
- tils5
- tins5
- tipi7
- tips7
- tits4
- topi7
- tops7
- trap7
- trip7
- tsar4
- tuis5
- tups8
- twas7
- typp12
- upas8
- utas5
- vast8
- vats8
- visa8
- vita8
- wait7
- waps10
- wasp10
- wast7
- wats7
- wisp10
- wist7
- wits7
- yaps9
- yips9
- zaps16
- zips16
- zits13