4 letters
- rood5
- roof7
- rook8
- room7
- root4
- rose4
- rosy6
- roti4
- roto4
- rots4
- rows7
- rush7
- rusk9
- saki8
- sari4
- sark8
- shim9
- shin7
- ship9
- shit6
- shiv10
- shmo9
- shod7
- shoe6
- shog8
- shoo6
- shop9
- shot6
- show9
- shri6
- sick11
- sigh8
- sike8
- silk9
- silo5
- sinh7
- sink9
- sire4
- sirs4
- sith6
- skid9
- skim11
- skin9
- skip11
- skis8
- skit8
- soak8
- soar4
- sock11
- soil5
- soke8
- soli5
- solo5
- sook8
- soon5
- soot4
- soph9
- sora4
- sorb7
- sord5
- sore4
- sori4
- sorn5
- sort4
- soth6
- souk9
- sour5
- spik11
- sris4
- stir4
- thio6
- thir6
- this6
- thro6
- tiro4
- took8
- tori4
- toro4
- tors4
- tosh6
- trio4
- whir9
- wish9
- woks11
- woos7
- work11
- yoks10
- zoos13
- zori13