4 letters
- silo5
- silt5
- simp10
- sims7
- sins5
- sipe7
- sips7
- sire4
- sirs4
- sits4
- sizy15
- skip11
- skis8
- slap8
- slay7
- slid6
- slim8
- slip8
- slit5
- slop8
- slur6
- snip8
- soil5
- soli5
- sols5
- sops7
- sori4
- soys6
- spar7
- spas7
- spay9
- spic10
- spik11
- spin8
- spit7
- spiv11
- spry9
- spur8
- sris4
- stir4
- sups8
- syli7
- syph11
- tils5
- tipi7
- tips7
- tirl5
- trip7
- virl9
- wily10
- wiry9
- wisp10
- wiss7
- yaps9
- yelp10
- yids7
- yill8
- yins7
- yipe9
- yips9
- yird7
- yirr6
- yups10
- ywis9
- zips16