4 letters
- scar7
- scat7
- scop10
- scud9
- scum11
- scup11
- scut8
- seal5
- seam7
- sear4
- seas4
- seat4
- secs7
- sect7
- seen5
- seep7
- send6
- sene5
- sent5
- sept7
- sera4
- seta4
- sewn8
- shea6
- shun8
- sice7
- sine5
- sipe7
- skep11
- skua9
- slap8
- slue6
- snag7
- snap8
- snaw8
- sned6
- snip8
- snub9
- snug8
- snye7
- soap7
- sone5
- soup8
- spae7
- spam10
- span8
- spar7
- spas7
- spat7
- spay9
- spaz16
- spec10
- sped8
- spew10
- spic10
- spin8
- spud9
- spue8
- spun9
- spur8
- step7
- stun6
- suba8
- such10
- suck12
- sued6
- suer5
- sues5
- suet5
- sump11
- sung8
- sunk10
- sunn7
- suns6
- supe8
- sups8
- sura5
- sure5
- swan8
- swap10
- syce9
- sync10
- syne7
- tace7
- tans5
- tape7
- taps7
- taus5
- teas4
- tens5
- tepa7
- tuna6
- tune6
- tuns6
- tups8
- ukes9
- ulan7
- ulna7
- umps11
- unai6
- unau7
- unbe9
- unci9
- unco9
- unde7
- upas8
- upon9
- urea5
- urns6
- ursa5
- used6
- user5
- uses5
- utas5
- uvea9
- vacs11
- vane9
- vans9
- vase8
- vaus9
- vena9
- waes7
- wane8
- wans8
- waps10
- wasp10
- wean8
- wens8
- yaps9
- yaup10
- yean7
- yeas6
- yens7
- yuan8
- yuca10
- yups10
- zaps16