4 letters
- spew10
- spin8
- spot7
- spry9
- spud9
- spue8
- spun9
- spur8
- stop7
- stow7
- stun6
- suer5
- sugh9
- sumo8
- sump11
- sung8
- sunk10
- sunn7
- suns6
- supe8
- sups8
- sura5
- surd6
- sure5
- surf8
- swag9
- swan8
- swap10
- swig9
- swob10
- swop10
- swot7
- swum11
- togs6
- tong7
- tons5
- tops7
- torn5
- tors4
- tour5
- town8
- tows7
- trop7
- trow7
- trug7
- tugs7
- tung8
- tuns6
- tups8
- turn6
- twos7
- udos6
- ughs9
- umps11
- unco9
- undo7
- unto6
- upas8
- updo9
- upon9
- urbs8
- urds6
- urge7
- urns6
- ursa5
- urus6
- user5
- vows11
- vrow11
- vugs11
- wags9
- wans8
- waps10
- warn8
- warp10
- wars7
- wasp10
- waur8
- wens8
- whop12
- wigs9
- wing10
- wino8
- wins8
- wisp10
- woes7
- wogs9
- woks11
- wonk12
- wons8
- wont8
- woos7
- wops10
- word8
- wore7
- work11
- worm10
- worn8
- wort7
- wost7
- wots7
- wows10
- wrap10
- wren8
- wuss8
- wyns10
- your7
- yows9
- yups10