4 letters
- ordo5
- ores4
- orts4
- orzo13
- osar4
- ours5
- owns8
- poco10
- pons8
- poon8
- poor7
- porn8
- pros7
- rebs7
- recs7
- rhos6
- ribs7
- rins5
- roan5
- robe7
- robs7
- rock11
- rocs7
- rods5
- roes4
- roms7
- rood5
- roof7
- rook8
- room7
- root4
- rose4
- rosy6
- roto4
- rots4
- rows7
- rubs8
- runs6
- scab10
- scan8
- scar7
- scop10
- scot7
- scow10
- scry9
- shoo6
- slob8
- snib8
- snob8
- snog7
- snot5
- snow8
- snub9
- soar4
- sobs7
- sock11
- solo5
- sone5
- song7
- sons5
- sook8
- soon5
- soot4
- sora4
- sorb7
- sord5
- sore4
- sori4
- sorn5
- sort4
- sour5
- sown8
- stob7
- swob10
- sybo9
- sync10
- tons5
- toon5
- torc7
- torn5
- toro4
- tors4
- unco9
- urbs8
- urns6
- wons8
- woos7
- worn8
- yobs9
- zoon14
- zoos13