4 letters
- rung8
- runs6
- runt6
- ruse5
- rush7
- rusk9
- rust5
- ruts5
- sain5
- sang7
- sari4
- shin7
- shri6
- shun8
- sigh8
- sign7
- sine5
- sing7
- sinh7
- sink9
- sins5
- sire4
- sirs4
- skin9
- slug8
- slur6
- smug10
- snag7
- snib8
- snip8
- snit5
- snog7
- snub9
- snug8
- song7
- sori4
- sorn5
- sour5
- spin8
- spun9
- spur8
- sris4
- stir4
- stun6
- suer5
- sugh9
- suit5
- sulu7
- sung8
- sunk10
- sunn7
- suns6
- sura5
- surd6
- sure5
- surf8
- swig9
- ting7
- tins5
- trig6
- trug7
- tugs7
- tuis5
- tung8
- tuns6
- turn6
- ughs9
- ulus7
- unai6
- unau7
- unci9
- unit6
- urbs8
- urds6
- urge7
- uric8
- urns6
- ursa5
- urus6
- user5
- vigs10
- vugg13
- vugs11
- wigs9
- wing10
- wins8
- yins7
- zigs15
- zing16
- zins14