4 letters
- rash6
- rasp7
- ream7
- reap7
- regs6
- rems7
- repo7
- reps7
- resh6
- rhea6
- rhos6
- roam7
- roan5
- roes4
- romp10
- roms7
- room7
- rope7
- rose4
- sage6
- sago6
- same7
- samp10
- sane5
- sang7
- seam7
- sear4
- sego6
- sera4
- shag8
- sham9
- shea6
- shmo9
- shoe6
- shog8
- shoo6
- shop9
- smog9
- snag7
- snap8
- snog7
- soap7
- soar4
- soma7
- some7
- sone5
- song7
- soon5
- soph9
- sora4
- sore4
- sorn5
- spae7
- spam10
- span8
- spar7