4 letters
- shul8
- shun8
- shut7
- sibs7
- sice7
- sics7
- side5
- sigh8
- sike8
- sima7
- simp10
- sims7
- sine5
- sinh7
- sins5
- sipe7
- sips7
- sire4
- sirs4
- site4
- sith6
- sits4
- size13
- skee8
- skep11
- skim11
- skip11
- skis8
- slim8
- slip8
- slue6
- slum9
- slur6
- smew10
- smit7
- smug10
- smut8
- snip8
- some7
- soph9
- sops7
- sore4
- sori4
- soup8
- sour5
- sous5
- spae7
- spam10
- spar7
- spas7
- spec10
- sped8
- spew10
- spic10
- spik11
- spin8
- spit7
- spiv11
- spry9
- spud9
- spue8
- spun9
- spur8
- sris4
- stem7
- step7
- stir4
- stum8
- subs8
- such10
- suds6
- sued6
- suer5
- sues5
- suet5
- sugh9
- suit5
- sumo8
- sump11
- sums8
- suns6
- supe8
- sups8
- suqs14
- sura5
- surd6
- sure5
- surf8
- suss5
- swim10
- swum11
- syph11
- teem7
- tees4
- temp10
- term7
- thee6
- them9
- thir6
- this6
- thru7
- thus7
- tier4
- ties4
- time7
- tips7
- tire4
- tree4
- trim7
- trip7
- true5
- tuis5
- tump11
- tups8
- tush7
- ughs9
- ukes9
- umps11
- upas8
- urbs8
- urds6
- urea5
- urge7
- uric8
- urns6
- ursa5
- urus6
- used6
- user5
- uses5
- veep11
- veer8
- vees8
- vier8
- vies8
- vims11
- vise8
- weep10
- weer7
- wees7
- weir7
- were7
- whee9
- whim12
- whip12
- whir9
- wimp13
- wipe10
- wire7
- wise7
- wish9
- wisp10
- wiss7
- wuss8
- yipe9
- yips9
- yups10
- zees13
- zips16