4 letters
- sofa7
- soja13
- soke8
- sola5
- solo5
- soma7
- sook8
- soon5
- soot4
- soph9
- sops7
- sora4
- sorb7
- sord5
- sore4
- sori4
- sorn5
- sort4
- souk9
- soup8
- sour5
- soya6
- spae7
- spam10
- span8
- spar7
- spas7
- spat7
- spay9
- spaz16
- spec10
- spic10
- spik11
- spot7
- spry9
- spur8
- stab7
- star4
- stoa4
- stob7
- stop7
- suba8
- suck12
- sura5
- swab10
- swap10
- swob10
- swop10
- sybo9
- tabs7
- tack11
- taco7
- taos4
- taps7
- taro4
- tarp7
- tars4
- task8
- took8
- tops7
- tora4
- torc7
- toro4
- tors4
- trap7
- trop7
- tsar4
- upas8
- urbs8
- ursa5
- vacs11
- vars8
- wabs10
- wack14
- waps10
- wark11
- warp10
- wars7
- wasp10
- woks11
- woos7
- wops10
- work11
- wrap10
- yack13
- yaks10
- yaps9
- yobs9
- yock13
- yoks10
- zaps16
- zoos13