4 letters
- sith6
- sits4
- skip11
- skit8
- slap8
- slat5
- slid6
- slim8
- slip8
- slit5
- slop8
- slot5
- slub9
- slue6
- slug8
- slum9
- slur6
- slut6
- smit7
- smut8
- snip8
- snit5
- soil5
- soli5
- soul6
- soup8
- spat7
- spic10
- spik11
- spin8
- spit7
- spiv11
- spot7
- spud9
- spue8
- spun9
- spur8
- step7
- stir4
- stop7
- stub8
- stud6
- stum8
- stun6
- suet5
- suit5
- sulk10
- sulu7
- sump11
- supe8
- sups8
- syli7
- tail5
- tali5
- taps7
- taus5
- tels5
- this6
- thus7
- tics7
- ties4
- tile5
- till6
- tils5
- tilt5
- tins5
- tipi7
- tips7
- tirl5
- tits4
- toil5
- tolu6
- topi7
- tops7
- trip7
- tubs8
- tugs7
- tuis5
- tule6
- tump11
- tuns6
- tups8
- tush7
- tusk9
- tuts5
- ulus7
- umps11
- unit6
- upas8
- utas5
- wilt8
- wisp10
- wist7
- wits7
- yips9
- yups10
- zips16
- zits13