4 letters
- self8
- sell6
- sels5
- sept7
- sera4
- sers4
- seta4
- sets4
- sews7
- shea6
- shes6
- shul8
- sial5
- sipe7
- sips7
- skas8
- skep11
- skua9
- slab8
- slag7
- slam8
- slap8
- slat5
- slaw8
- slay7
- sled6
- slew8
- slip8
- sloe5
- slop8
- slub9
- slue6
- slug8
- slum9
- slur6
- slut6
- snap8
- soap7
- sola5
- sole5
- sols5
- sops7
- soul6
- soup8
- sous5
- spae7
- spam10
- span8
- spar7
- spas7
- spat7
- spay9
- spaz16
- spec10
- sped8
- spew10
- spud9
- spue8
- spun9
- spur8
- step7
- suba8
- subs8
- suds6
- sued6
- suer5
- sues5
- suet5
- sulk10
- sulu7
- sump11
- sums8
- suns6
- supe8
- sups8
- suqs14
- sura5
- sure5
- suss5
- swap10
- tael5
- tale5
- tape7
- taps7
- tass4
- taus5
- teal5
- teas4
- tela5
- tels5
- tepa7
- tule6
- tups8
- ukes9
- ulan7
- ulna7
- ulus7
- ulva10
- umps11
- upas8
- urea5
- ursa5
- used6
- user5
- uses5
- utas5
- uvea9
- vale9
- vase8
- vaus9
- veal9
- vela9
- waes7
- wale8
- waps10
- wasp10
- waul9
- weal8
- wuss8
- yaps9
- yaup10
- yeas6
- yelp10
- yule8
- yups10
- zaps16
- zeal14