4 letters
- sims7
- sire4
- sirs4
- skeg10
- sled6
- slue6
- slug8
- slum9
- slur6
- smew10
- smog9
- smug10
- smut8
- sned6
- snug8
- sods5
- some7
- sord5
- sore4
- sour5
- sous5
- sped8
- spud9
- spue8
- spur8
- sris4
- stem7
- stud6
- stum8
- subs8
- sudd7
- suds6
- sued6
- suer5
- sues5
- suet5
- sugh9
- sumo8
- sump11
- sums8
- sung8
- suns6
- supe8
- sups8
- suqs14
- sura5
- surd6
- sure5
- surf8
- suss5
- swum11
- teds5
- tegs6
- term7
- true5
- trug7
- tugs7
- turd6
- udos6
- ughs9
- ukes9
- umps11
- unde7
- urbs8
- urds6
- urea5
- urge7
- urns6
- ursa5
- urus6
- used6
- user5
- uses5
- vugs11
- weds8
- wuss8
- zeds14