4 letters
- slue6
- slug8
- slum9
- slur6
- slut6
- snaw8
- soar4
- sola5
- sora4
- soul6
- sour5
- spar7
- spur8
- star4
- staw7
- suba8
- suer5
- sulk10
- sulu7
- sura5
- surd6
- sure5
- surf8
- swab10
- swag9
- swam10
- swan8
- swap10
- swat7
- sway9
- swum11
- tars4
- taus5
- taws7
- tsar4
- twas7
- ulan7
- ulna7
- ulus7
- ulva10
- upas8
- urbs8
- urds6
- urea5
- urns6
- ursa5
- urus6
- user5
- utas5
- vars8
- vaus9
- vaws11
- wabs10
- wads8
- waes7
- wags9
- wail8
- wair7
- wale8
- walk12
- wall9
- waly10
- wans8
- waps10
- ward8
- ware7
- wark11
- warm10
- warn8
- warp10
- wars7
- wart7
- wary9
- wash9
- wasp10
- wast7
- wats7
- wauk12
- waul9
- waur8
- wawl11
- waws10
- ways9
- weal8
- wear7
- wrap10
- wuss8
- yawl10
- yaws9