4 letters
- sial5
- sigh8
- sign7
- sima7
- sine5
- sing7
- sinh7
- sink9
- sins5
- sith6
- skin9
- slaw8
- snag7
- snap8
- snaw8
- snib8
- snip8
- snit5
- snow8
- sown8
- span8
- spin8
- staw7
- swab10
- swag9
- swam10
- swan8
- swap10
- swat7
- sway9
- swig9
- swim10
- tain5
- tans5
- taws7
- than7
- thaw9
- thin7
- this6
- tins5
- twas7
- twin8
- unai6
- vain9
- vans9
- vaws11
- vina9
- visa8
- wabs10
- wadi8
- wads8
- waes7
- wags9
- waif10
- wail8
- wain8
- wair7
- wait7
- wand9
- wane8
- wans8
- want8
- wany10
- waps10
- warn8
- wars7
- wash9
- wasp10
- wast7
- wats7
- waws10
- ways9
- wean8
- wens8
- wham12
- whap12
- what9
- when10
- whid10
- whig11
- whim12
- whin10
- whip12
- whir9
- whit9
- whiz18
- whoa9
- whys11
- wich12
- wigs9
- wind9
- wine8
- wing10
- wink12
- wino8
- wins8
- winy10
- wise7
- wish9
- wisp10
- wiss7
- wist7
- with9
- wits7
- wons8
- wyns10
- yawn10
- yaws9
- yins7
- ywis9
- zins14