4 letters
- shaw9
- shay8
- shea6
- shim9
- shin7
- ship9
- shit6
- shiv10
- shmo9
- shri6
- sial5
- sibb10
- sibs7
- sigh8
- sima7
- simp10
- sims7
- sinh7
- sire4
- sirs4
- sith6
- skim11
- slab8
- slam8
- slim8
- smit7
- snib8
- soar4
- soma7
- sora4
- sorb7
- sori4
- spam10
- spar7
- sris4
- stab7
- star4
- stir4
- suba8
- sura5
- swab10
- swam10
- swim10
- tabs7
- tahr6
- tams7
- tars4
- thir6
- this6
- tram7
- trim7
- tsar4
- urbs8
- ursa5
- vair8
- vars8
- vims11
- visa8
- wabs10
- wair7
- warm10
- wars7
- wash9
- wham12
- whim12
- whir9
- wish9
- yams9