4 letters
- snip8
- soap7
- soar4
- soph9
- sora4
- sori4
- soup8
- sour5
- spae7
- spam10
- span8
- spar7
- spas7
- spat7
- spay9
- spaz16
- spic10
- spik11
- spin8
- spit7
- spiv11
- spry9
- spud9
- spue8
- spun9
- spur8
- sris4
- star4
- stir4
- suba8
- such10
- suer5
- sugh9
- suit5
- sump11
- supe8
- sups8
- sura5
- surd6
- sure5
- surf8
- swap10
- syph11
- tahr6
- taps7
- tarp7
- tars4
- taus5
- thir6
- this6
- thru7
- thus7
- tips7
- trap7
- trip7
- tsar4
- tuis5
- tups8
- tush7
- ughs9
- umps11
- unai6
- upas8
- urbs8
- urds6
- urea5
- uric8
- urns6
- ursa5
- urus6
- user5
- utas5
- vair8
- vars8
- vaus9
- visa8
- wair7
- waps10
- warp10
- wars7
- wash9
- wasp10
- waur8
- whap12
- whip12
- whir9
- wish9
- wisp10
- wrap10
- yaps9
- yaup10
- yips9
- yups10
- zaps16
- zips16