4 letters
- shri6
- sice7
- sick11
- sics7
- side5
- sign7
- sike8
- simp10
- sine5
- sing7
- sinh7
- sink9
- sins5
- sipe7
- sips7
- sire4
- sirs4
- site4
- size13
- skep11
- skin9
- skip11
- slip8
- snap8
- sned6
- snib8
- snip8
- snit5
- snye7
- sone5
- sore4
- sori4
- sorn5
- spae7
- span8
- spar7
- spec10
- sped8
- spew10
- spic10
- spik11
- spin8
- spit7
- spiv11
- spry9
- spue8
- spun9
- spur8
- sris4
- step7
- stir4
- suer5
- supe8
- sure5
- syce9
- sync10
- syne7
- tens5
- tern5
- tics7
- tier4
- ties4
- tine5
- tins5
- tips7
- tire4
- trip7
- unci9
- uric8
- urns6
- user5
- vein9
- vice11
- vier8
- vies8
- vine9
- vise8
- weir7
- wens8
- wine8
- wins8
- wipe10
- wire7
- wise7
- wisp10
- wren8
- yens7
- yins7
- yipe9
- yips9
- zein14
- zinc17
- zins14
- zips16