4 letters
- simp10
- sims7
- sine5
- sing7
- sinh7
- sink9
- sins5
- sipe7
- sips7
- sire4
- sirs4
- sits4
- skas8
- skin9
- skip11
- skis8
- slap8
- slip8
- snag7
- snap8
- snaw8
- snib8
- snip8
- snit5
- soap7
- soar4
- sons5
- sops7
- sora4
- sori4
- sorn5
- spae7
- spam10
- span8
- spar7
- spas7
- spat7
- spay9
- spaz16
- spic10
- spik11
- spin8
- spit7
- spiv11
- spry9
- spun9
- spur8
- sris4
- star4
- stir4
- sunn7
- suns6
- sups8
- sura5
- swan8
- swap10
- tain5
- tans5
- tapa7
- taps7
- tarn5
- tarp7
- tars4
- tass4
- tins5
- tips7
- trap7
- trip7
- tsar4
- unai6
- upas8
- urns6
- ursa5
- vain9
- vair8
- vans9
- vara8
- vars8
- vasa8
- vina9
- visa8
- wain8
- wair7
- wans8
- waps10
- warn8
- warp10
- wars7
- wasp10
- wins8
- wisp10
- wiss7
- wrap10
- yaps9
- yarn7
- yins7
- yips9
- zaps16
- zins14
- zips16