4 letters
- scar7
- scup11
- seal5
- sear4
- sera4
- shul8
- sial5
- skua9
- slab8
- slag7
- slam8
- slap8
- slat5
- slaw8
- slay7
- slip8
- slob8
- slop8
- slub9
- slue6
- slug8
- slum9
- slur6
- slut6
- snap8
- snub9
- soap7
- soar4
- sola5
- sora4
- sorb7
- soul6
- soup8
- sour5
- spae7
- spam10
- span8
- spar7
- spas7
- spat7
- spay9
- spaz16
- spry9
- spud9
- spue8
- spun9
- spur8
- stab7
- star4
- stub8
- suba8
- subs8
- suer5
- sulk10
- sulu7
- sump11
- supe8
- sups8
- sura5
- surd6
- sure5
- surf8
- swab10
- swap10
- tabs7
- tabu8
- taps7
- tarp7
- tars4
- taus5
- trap7
- tsar4
- tuba8
- tubs8
- tups8
- ulan7
- ulna7
- ulus7
- ulva10
- umps11
- upas8
- upby13
- urbs8
- urds6
- urea5
- urns6
- ursa5
- urus6
- user5
- utas5
- vars8
- vaus9
- wabs10
- waps10
- warp10
- wars7
- wasp10
- waul9
- waur8
- wrap10
- yaps9
- yaup10
- yups10
- zaps16