4 letters
- sick11
- sigh8
- sike8
- sild6
- silk9
- sill6
- silo5
- silt5
- sima7
- simp10
- sinh7
- sink9
- sipe7
- sips7
- sith6
- skag10
- skas8
- skat8
- skep11
- skid9
- skim11
- skin9
- skip11
- skis8
- skit8
- skua9
- slab8
- slag7
- slam8
- slap8
- slat5
- slaw8
- slay7
- slid6
- slim8
- slip8
- slit5
- slop8
- snap8
- snip8
- soak8
- soap7
- soil5
- sola5
- soli5
- soph9
- spae7
- spam10
- span8
- spar7
- spas7
- spat7
- spay9
- spaz16
- spic10
- spik11
- spin8
- spit7
- spiv11
- sulk10
- swap10
- syli7
- syph11
- tail5
- tali5
- talk9
- taps7
- task8
- this6
- tils5
- tips7
- upas8
- vail9
- vial9
- visa8
- wail8
- walk12
- waps10
- wash9
- wasp10
- whap12
- whip12
- wish9
- wisp10
- yaks10
- yaps9
- yips9
- zaps16
- zips16