4 letters
- sorn5
- soul6
- sour5
- spae7
- spam10
- span8
- spar7
- spue8
- spun9
- spur8
- star4
- stem7
- stum8
- stun6
- suba8
- sued6
- suer5
- sues5
- suet5
- sulk10
- sulu7
- sumo8
- sump11
- sums8
- sung8
- sunk10
- sunn7
- suns6
- supe8
- sura5
- surd6
- sure5
- surf8
- swam10
- swan8
- swum11
- syne7
- tael5
- tale5
- tame7
- tams7
- tans5
- tare4
- tarn5
- tars4
- taus5
- teal5
- team7
- tear4
- teas4
- tela5
- tels5
- tens5
- term7
- tern5
- tram7
- true5
- tsar4
- tule6
- tuna6
- tune6
- tuns6
- turn6
- ukes9
- ulan7
- ulna7
- ulus7
- ulva10
- umps11
- unai6
- unau7
- unbe9
- unde7
- upas8
- urbs8
- urds6
- urea5
- urge7
- urns6
- ursa5
- urus6
- used6
- user5
- uses5
- utas5
- uvea9
- vale9
- vane9
- vans9
- vars8
- vase8
- vaus9
- veal9
- vela9
- vena9
- vera8
- waes7
- wale8
- wame10
- wane8
- wans8
- ware7
- warm10
- warn8
- wars7
- waul9
- waur8
- weal8
- wean8
- wear7
- wens8
- wren8
- yams9
- yare6
- yarn7
- yean7
- year6
- yeas6
- yens7
- ylem10
- yuan8
- yule8
- zeal14