4 letters
- secs7
- sect7
- seel5
- self8
- sell6
- sels5
- shea6
- shed7
- shes6
- shew9
- shoe6
- shul8
- shun8
- shut7
- sice7
- sled6
- slew8
- sloe5
- slub9
- slue6
- slug8
- slum9
- slur6
- slut6
- sole5
- soul6
- spec10
- spue8
- such10
- suck12
- sued6
- suer5
- sues5
- suet5
- sugh9
- sulk10
- sulu7
- supe8
- sure5
- syce9
- tels5
- thus7
- tule6
- tush7
- ughs9
- ukes9
- ulus7
- used6
- user5
- uses5
- yech11
- yuch12
- yule8