4 letters
- shog8
- shop9
- shri6
- shul8
- shun8
- shut7
- sibb10
- sibs7
- sigh8
- sign7
- simp10
- sing7
- sinh7
- sipe7
- sips7
- sith6
- skip11
- slip8
- slub9
- slug8
- smug10
- snib8
- snip8
- snub9
- snug8
- soph9
- soup8
- spic10
- spik11
- spin8
- spit7
- spiv11
- spud9
- spue8
- spun9
- spur8
- stub8
- suba8
- subs8
- such10
- sugh9
- suit5
- sump11
- sung8
- supe8
- sups8
- swig9
- syph11
- this6
- thug9
- thus7
- tips7
- tubs8
- tugs7
- tuis5
- tups8
- tush7
- ughs9
- umps11
- upas8
- upby13
- urbs8
- vigs10
- vugh13
- vugs11
- whig11
- whip12
- wigs9
- wish9
- wisp10
- yips9
- yups10
- zigs15
- zips16