4 letters
- scup11
- scut8
- secs7
- sect7
- seed5
- seen5
- send6
- sene5
- sent5
- sewn8
- shed7
- shun8
- sice7
- side5
- sine5
- sled6
- slue6
- sned6
- snub9
- snug8
- snye7
- sone5
- spec10
- sped8
- spud9
- spue8
- spun9
- stud6
- stun6
- such10
- suck12
- sudd7
- suds6
- sued6
- suer5
- sues5
- suet5
- sung8
- sunk10
- sunn7
- suns6
- supe8
- surd6
- sure5
- syce9
- sync10
- syne7
- teds5
- tend6
- tens5
- tune6
- tuns6
- udos6
- ukes9
- unbe9
- unci9
- unco9
- unde7
- undo7
- undy9
- urds6
- urns6
- used6
- user5
- uses5
- vend10
- weds8
- wend9
- wens8
- yens7
- zeds14