4 letters
- scud9
- scum11
- scup11
- scut8
- seal5
- seam7
- sear4
- seas4
- seat4
- secs7
- sect7
- seed5
- seek8
- seel5
- seem7
- seen5
- seep7
- seer4
- sees4
- seme7
- sene5
- sera4
- sere4
- serf7
- sers4
- seta4
- shea6
- sice7
- sire4
- skee8
- skua9
- slue6
- slur6
- soar4
- sora4
- sore4
- sour5
- spae7
- spar7
- spec10
- spue8
- spur8
- star4
- suba8
- such10
- suck12
- sued6
- suer5
- sues5
- suet5
- supe8
- sura5
- surd6
- sure5
- surf8
- syce9
- tace7
- tare4
- tars4
- taus5
- tear4
- teas4
- tees4
- tree4
- true5
- tsar4
- ukes9
- upas8
- urbs8
- urds6
- urea5
- urge7
- uric8
- urns6
- ursa5
- urus6
- used6
- user5
- uses5
- utas5
- uvea9
- vacs11
- vara8
- vars8
- vasa8
- vase8
- vaus9
- veer8
- vees8
- vera8
- waes7
- ware7
- wars7
- waur8
- wear7
- weer7
- wees7
- were7
- yare6
- year6
- yeas6
- yuca10
- zees13