4 letters
- sims7
- sine5
- sing7
- sinh7
- sink9
- sins5
- sipe7
- sips7
- sirs4
- sits4
- skag10
- skas8
- skat8
- skep11
- skid9
- skim11
- skin9
- skip11
- skis8
- skit8
- skua9
- slab8
- slag7
- slam8
- slap8
- slat5
- slaw8
- slay7
- sled6
- slid6
- slim8
- slip8
- slit5
- slop8
- snag7
- snap8
- snaw8
- sned6
- snib8
- snip8
- snit5
- soak8
- soap7
- soda5
- sods5
- soil5
- sola5
- sold6
- soli5
- sols5
- sons5
- sops7
- spae7
- spam10
- span8
- spar7
- spas7
- spat7
- spay9
- spaz16
- sped8
- spic10
- spik11
- spin8
- spit7
- spiv11
- spud9
- spun9
- sris4
- suds6
- sulk10
- sunk10
- suns6
- sups8
- swan8
- swap10
- syli7
- tads5
- tail5
- tain5
- tali5
- talk9
- tank9
- tans5
- taps7
- task8
- tass4
- tils5
- tins5
- tips7
- tsks8
- ulan7
- ulna7
- unai6
- upas8
- vail9
- vain9
- vans9
- vial9
- vina9
- visa8
- wadi8
- wads8
- wail8
- wain8
- walk12
- wand9
- wans8
- waps10
- wasp10
- wild9
- wind9
- wink12
- wins8
- wisp10
- wiss7
- yaks10
- yald8
- yank11
- yaps9
- yids7
- yins7
- yips9
- zaps16
- zins14
- zips16