4 letters
- puls9
- rebs7
- recs7
- rube8
- rubs8
- rues5
- rule6
- ruse5
- sabe7
- sale5
- sall6
- saul6
- scab10
- scud9
- scum11
- scup11
- scut8
- seal5
- secs7
- sect7
- seel5
- self8
- sell6
- sels5
- shul8
- sice7
- sill6
- slab8
- sled6
- slew8
- slob8
- sloe5
- slub9
- slue6
- slug8
- slum9
- slur6
- slut6
- snub9
- sole5
- soul6
- spec10
- spue8
- stub8
- suba8
- subs8
- such10
- suck12
- sued6
- suer5
- sues5
- suet5
- sulk10
- sulu7
- supe8
- sure5
- syce9
- tell6
- tels5
- tube8
- tubs8
- tule6
- ukes9
- ulus7
- unbe9
- urbs8
- used6
- user5
- uses5
- webs10
- well9
- yell8
- yule8
- zebu17