4 letters
- pegs9
- pens8
- plug11
- plus9
- pugs10
- pule9
- puls9
- pung11
- puns9
- regs6
- rues5
- rugs7
- rule6
- rune6
- rung8
- runs6
- ruse5
- sage6
- sale5
- sane5
- sang7
- saul6
- seal5
- seel5
- seen5
- sego6
- segs6
- self8
- sell6
- sels5
- send6
- sene5
- sent5
- sewn8
- shul8
- shun8
- sign7
- sine5
- sing7
- skeg10
- slag7
- sled6
- slew8
- sloe5
- slog7
- slub9
- slue6
- slug8
- slum9
- slur6
- slut6
- smug10
- snag7
- sned6
- snog7
- snub9
- snug8
- snye7
- sole5
- sone5
- song7
- soul6
- spue8
- spun9
- stun6
- sued6
- suer5
- sues5
- suet5
- sugh9
- sulk10
- sulu7
- sung8
- sunk10
- sunn7
- suns6
- supe8
- sure5
- syne7
- tegs6
- tels5
- tens5
- tugs7
- tule6
- tune6
- tung8
- tuns6
- ughs9
- ugly10
- ukes9
- ulan7
- ulna7
- ulus7
- unau7
- unbe9
- unde7
- urge7
- urns6
- urus6
- used6
- user5
- uses5
- vugs11
- wens8
- yens7
- yule8