4 letters
- sark8
- sash6
- sass4
- saul6
- sawn8
- saws7
- says6
- scad8
- scan8
- scar7
- scud9
- scup11
- sear4
- seas4
- send6
- sera4
- sers4
- shad7
- shun8
- sins5
- sips7
- sirs4
- skas8
- skua9
- slap8
- slur6
- snag7
- snap8
- snaw8
- sned6
- snip8
- snub9
- snug8
- soap7
- soar4
- soda5
- sods5
- sons5
- sops7
- sora4
- sord5
- sorn5
- soup8
- sour5
- sous5
- spae7
- spam10
- span8
- spar7
- spas7
- spat7
- spay9
- spaz16
- sped8
- spin8
- spry9
- spud9
- spue8
- spun9
- spur8
- sris4
- star4
- stud6
- stun6
- suba8
- subs8
- sudd7
- suds6
- sued6
- suer5
- sues5
- sump11
- sums8
- sung8
- sunk10
- sunn7
- suns6
- supe8
- sups8
- suqs14
- sura5
- surd6
- sure5
- surf8
- suss5
- swan8
- swap10
- tads5
- tans5
- taps7
- tarn5
- tarp7
- tars4
- tass4
- taus5
- trad5
- trap7
- tsar4
- tuna6
- tuns6
- tups8
- turd6
- turn6
- udos6
- ulan7
- ulna7
- umps11
- unai6
- unau7
- unde7
- undo7
- undy9
- upas8
- updo9
- upon9
- urbs8
- urds6
- urea5
- urns6
- ursa5
- urus6
- used6
- user5
- uses5
- utas5
- vans9
- vars8
- vaus9
- wads8
- wand9
- wans8
- waps10
- ward8
- warn8
- warp10
- wars7
- wasp10
- waur8
- wrap10
- wuss8
- yaps9
- yard7
- yarn7
- yaud8
- yaup10
- yuan8
- yups10
- zaps16