4 letters
- shin7
- shri6
- shun8
- sibb10
- sibs7
- sice7
- sick11
- sics7
- side5
- sigh8
- sign7
- sike8
- sima7
- simp10
- sims7
- sine5
- sing7
- sinh7
- sink9
- sins5
- sipe7
- sire4
- sirs4
- site4
- size13
- skeg10
- skim11
- skin9
- slim8
- slub9
- slue6
- slug8
- slum9
- slur6
- smew10
- smit7
- smog9
- smug10
- smut8
- snag7
- sned6
- snib8
- snip8
- snit5
- snob8
- snog7
- snub9
- snug8
- snye7
- some7
- sone5
- song7
- sorb7
- sore4
- sori4
- sorn5
- sour5
- spec10
- spic10
- spin8
- spue8
- spun9
- spur8
- sris4
- stem7
- stir4
- stub8
- stum8
- stun6
- suba8
- subs8
- such10
- suck12
- sued6
- suer5
- sues5
- suet5
- sugh9
- suit5
- sumo8
- sump11
- sums8
- sung8
- sunk10
- sunn7
- suns6
- supe8
- sura5
- surd6
- sure5
- surf8
- swig9
- swim10
- swum11
- syce9
- sync10
- syne7
- tegs6
- tens5
- term7
- tern5
- tics7
- tier4
- ties4
- time7
- tine5
- ting7
- tins5
- tire4
- trig6
- trim7
- true5
- trug7
- tube8
- tubs8
- tugs7
- tuis5
- tune6
- tung8
- tuns6
- turn6
- ughs9
- ukes9
- umbo11
- umps11
- unai6
- unbe9
- unci9
- unco9
- unde7
- unit6
- urbs8
- urds6
- urea5
- urge7
- uric8
- urns6
- ursa5
- urus6
- used6
- user5
- uses5
- vein9
- verb11
- vibe11
- vice11
- vier8
- vies8
- vigs10
- vims11
- vine9
- vise8
- vugs11
- webs10
- weir7
- wens8
- wigs9
- wine8
- wing10
- wins8
- wire7
- wise7
- wren8
- yens7
- yins7
- zebu17
- zein14
- zigs15
- zinc17
- zing16
- zins14