4 letters
- snob8
- snub9
- soak8
- sobs7
- sock11
- soil5
- soke8
- soli5
- solo5
- sook8
- soon5
- soot4
- sorb7
- sori4
- souk9
- soul6
- soup8
- sour5
- sous5
- spik11
- stob7
- stub8
- suba8
- subs8
- suck12
- suit5
- sulk10
- sulu7
- sumo8
- sunk10
- swob10
- sybo9
- took8
- tubs8
- tuis5
- tusk9
- udos6
- ukes9
- ulus7
- umbo11
- urbs8
- urus6
- woks11
- woos7
- yobs9
- yoks10
- yuks11
- zebu17
- zeks17
- zigs15
- zins14
- zips16
- zits13
- zoic16
- zonk18
- zoom16
- zoon14
- zoos13
- zori13