4 letters
- sims7
- sine5
- sing7
- sinh7
- sink9
- sins5
- sips7
- sirs4
- site4
- sith6
- sits4
- skin9
- skis8
- skit8
- slit5
- slub9
- slut6
- smit7
- smut8
- snib8
- snip8
- snit5
- snob8
- snot5
- snub9
- snug8
- sobs7
- sons5
- sots4
- sous5
- spin8
- spit7
- spun9
- sris4
- stab7
- stir4
- stob7
- stub8
- stud6
- stum8
- stun6
- suba8
- subs8
- suds6
- sues5
- suet5
- suit5
- sulu7
- sums8
- sung8
- sunk10
- sunn7
- suns6
- sups8
- suqs14
- suss5
- tabs7
- tabu8
- tain5
- tans5
- tass4
- taus5
- tens5
- thin7
- this6
- thus7
- tics7
- ties4
- tils5
- tine5
- ting7
- tins5
- tint5
- tiny7
- tips7
- tits4
- tons5
- toss4
- tsks8
- tuba8
- tube8
- tubs8
- tugs7
- tuis5
- tuna6
- tune6
- tung8
- tuns6
- tups8
- turn6
- tush7
- tusk9
- tuts5
- tutu6
- twin8
- tyin7
- ulus7
- unai6
- unau7
- unbe9
- unci9
- unit6
- unto6
- urbs8
- urns6
- urus6
- uses5
- utas5
- wins8
- wiss7
- wist7
- wits7
- wuss8
- yins7
- zins14
- zits13