4 letters
- sale5
- sall6
- salp8
- sals5
- salt5
- same7
- samp10
- sard5
- sari4
- sark8
- saul6
- scab10
- scam10
- scar7
- scum11
- seal5
- seam7
- sear4
- sera4
- sham9
- shul8
- sial5
- sima7
- skua9
- slab8
- slag7
- slam8
- slap8
- slat5
- slaw8
- slay7
- slim8
- slob8
- slub9
- slue6
- slug8
- slum9
- slur6
- slut6
- smug10
- smut8
- snub9
- soar4
- sola5
- soma7
- sora4
- sorb7
- soul6
- sour5
- spam10
- spar7
- spur8
- stab7
- star4
- stub8
- stum8
- suba8
- subs8
- suer5
- sulk10
- sulu7
- sumo8
- sump11
- sums8
- sura5
- surd6
- sure5
- surf8
- swab10
- swam10
- swum11
- tabs7
- tabu8
- tams7
- tars4
- taus5
- tram7
- tsar4
- tuba8
- tubs8
- ulan7
- ulna7
- ulus7
- ulva10
- umbo11
- umps11
- upas8
- urbs8
- urds6
- urea5
- urns6
- ursa5
- urus6
- user5
- utas5
- vars8
- vaus9
- wabs10
- warm10
- wars7
- waul9
- waur8
- yams9