4 letters
- shoo6
- shop9
- shot6
- show9
- shri6
- sial5
- sibs7
- sics7
- sigh8
- silo5
- sima7
- simp10
- sims7
- sinh7
- sins5
- sips7
- sirs4
- sith6
- sits4
- sizy15
- skas8
- skim11
- skis8
- slam8
- slay7
- slim8
- smit7
- smog9
- soak8
- soap7
- soar4
- sobs7
- soda5
- sods5
- sofa7
- soil5
- soja13
- sola5
- soli5
- solo5
- sols5
- soma7
- some7
- sons5
- sook8
- soon5
- soot4
- soph9
- sops7
- sora4
- sori4
- soth6
- sots4
- sous5
- sows7
- soya6
- soys6
- spam10
- spas7
- spay9
- sris4
- stay6
- stoa4
- sumo8
- sums8
- swam10
- sway9
- swim10
- sybo9
- syli7
- syph11
- tams7
- taos4
- tass4
- thio6
- this6
- toms7
- toom7
- tosh6
- toss4
- toyo6
- toys6
- vims11
- visa8
- wash9
- ways9
- wham12
- whim12
- whoa9
- whom12
- whys11
- wish9
- wiss7
- woos7
- yagi8
- yaks10
- yams9
- yaps9
- yaws9
- yays8
- yeah8
- yeas6
- yids7
- yins7
- yips9
- yobs9
- yodh9
- yods7
- yoga8
- yogh10
- yogi8
- yoks10
- yoni7
- yows9
- ywis9
- zoom16
- zoos13