4 letters
- oleo5
- oles5
- ones5
- onus6
- opes7
- opus8
- ores4
- orle5
- oses4
- ouds6
- ours5
- oust5
- outs5
- owes7
- owls8
- owse7
- oxes11
- oyes6
- pelf11
- peso7
- plus9
- pole8
- pols8
- pose7
- pouf11
- pule9
- puls9
- refs7
- roes4
- role5
- rolf8
- rose4
- roue5
- rues5
- rule6
- ruse5
- safe7
- sale5
- saul6
- seal5
- seel5
- sego6
- seif7
- self8
- sell6
- sels5
- serf7
- shoe6
- shul8
- silo5
- sled6
- slew8
- slob8
- sloe5
- slog7
- slop8
- slot5
- slow8
- slub9
- slue6
- slug8
- slum9
- slur6
- slut6
- sofa7
- soft7
- soil5
- soke8
- sola5
- sold6
- sole5
- soli5
- solo5
- sols5
- some7
- sone5
- sore4
- souk9
- soul6
- soup8
- sour5
- sous5
- spue8
- sued6
- suer5
- sues5
- suet5
- sulk10
- sulu7
- sumo8
- supe8
- sure5
- surf8
- tels5
- toes4
- tofu8
- tole5
- tolu6
- tule6
- udos6
- ukes9
- ulus7
- used6
- user5
- uses5
- voes8
- vole9
- woes7
- wolf11
- yule8