4 letters
- risk8
- roan5
- runs6
- rush7
- rusk9
- ryas6
- sack11
- sain5
- sake8
- saki8
- sand6
- sane5
- sang7
- sank9
- sans5
- sard5
- sari4
- sark8
- sash6
- sawn8
- scan8
- scar7
- sear4
- sera4
- shad7
- shag8
- shah8
- sham9
- shat6
- shaw9
- shay8
- shea6
- shin7
- shri6
- shun8
- sinh7
- sink9
- skag10
- skas8
- skat8
- skin9
- skua9
- snag7
- snap8
- snaw8
- soak8
- soar4
- sora4
- sorn5
- span8
- spar7
- star4
- sunk10
- sura5
- swan8
- tahr6
- tank9
- tans5
- tarn5
- tars4
- task8
- than7
- tsar4
- urns6
- ursa5
- vans9
- vars8
- wans8
- wark11
- warn8
- wars7
- wash9
- yaks10
- yank11
- yarn7