4 letters
- sans5
- saps7
- sash6
- shad7
- sham9
- shim9
- shin7
- ship9
- shmo9
- shod7
- shop9
- shun8
- sibs7
- sima7
- simp10
- sims7
- sinh7
- sins5
- sips7
- snap8
- snib8
- snip8
- snob8
- snub9
- soap7
- sobs7
- soda5
- sods5
- soma7
- sons5
- soph9
- sops7
- soup8
- sous5
- spam10
- span8
- spas7
- spin8
- spud9
- spun9
- suba8
- subs8
- suds6
- sumo8
- sump11
- sums8
- suns6
- sups8
- udos6
- umbo11
- umps11
- unai6
- undo7
- upas8
- updo9
- upon9