4 letters
- ship9
- shmo9
- shod7
- shop9
- shri6
- sibs7
- sics7
- side5
- sild6
- silo5
- sima7
- simp10
- sims7
- sins5
- sipe7
- sips7
- sire4
- sirs4
- sits4
- sizy15
- skid9
- skim11
- skip11
- skis8
- slid6
- slim8
- slip8
- slop8
- slum9
- slur6
- smit7
- smog9
- smug10
- smut8
- snip8
- soap7
- soar4
- sobs7
- soda5
- sods5
- soil5
- sold6
- soli5
- sols5
- soma7
- some7
- sons5
- soph9
- sops7
- sora4
- sorb7
- sord5
- sore4
- sori4
- sorn5
- sort4
- sots4
- souk9
- soul6
- soup8
- sour5
- sous5
- sows7
- soya6
- soys6
- spam10
- spar7
- spas7
- spay9
- sped8
- spic10
- spik11
- spin8
- spit7
- spiv11
- spot7
- spry9
- spud9
- spue8
- spun9
- spur8
- sris4
- stir4
- stop7
- stud6
- stum8
- subs8
- sudd7
- suds6
- sued6
- suer5
- sues5
- suit5
- sumo8
- sump11
- sums8
- suns6
- supe8
- sups8
- suqs14
- sura5
- surd6
- sure5
- surf8
- suss5
- swim10
- swop10
- swum11
- sybo9
- syli7
- syph11
- tidy7
- tips7
- tiro4
- tods5
- tody7
- toms7
- topi7
- tops7
- tori4
- tors4
- tory6
- toss4
- tour5
- toys6
- trim7
- trio4
- trip7
- trod5
- trop7
- troy6
- tuis5
- tump11
- tups8
- turd6
- typo9
- tyro6
- udos6
- umbo11
- umps11
- undo7
- undy9
- upas8
- upby13
- updo9
- upon9
- urbs8
- urds6
- uric8
- urns6
- ursa5
- urus6
- used6
- user5
- uses5
- vims11
- void9
- wimp13
- wiry9
- wisp10
- wiss7
- wops10
- word8
- worm10
- wuss8
- yams9
- yaps9
- yard7
- yaud8
- yaup10
- yids7
- yins7
- yipe9
- yips9
- yird7
- yirr6
- yobs9
- yodh9
- yods7
- yogi8
- yoks10
- yond8
- yoni7
- yore6
- your7
- yows9
- yuks11
- yups10
- yurt7
- ywis9
- zips16
- zori13