4 letters
- oozy15
- open8
- opes7
- opus8
- orcs7
- ores4
- oses4
- ossa4
- otic7
- ouch10
- ouds6
- ours5
- oust5
- outs5
- ouzo14
- oven9
- owes7
- owns8
- owse7
- oxen12
- oxes11
- oyer6
- oyes6
- oyez15
- pecs10
- pein8
- pens8
- peon8
- peso7
- pice10
- pics10
- pies7
- pine8
- pins8
- piny10
- pion8
- piso7
- piss7
- poco10
- pois7
- pone8
- pons8
- pony10
- poon8
- pose7
- posy9
- psis7
- puce11
- puns9
- puny11
- puss8
- pyes9
- pyic12
- pyin10
- quey16
- quin15
- recs7
- rein5
- reis4
- rice7
- rins5
- rise4
- rocs7
- roes4
- rose4
- rosy6
- roue5
- rues5
- ruin6
- rune6
- runs6
- ruse5
- ryes6
- sacs7
- sain5
- sane5
- sans5
- says6
- scan8
- scop10
- scot7
- scow10
- scry9
- scud9
- scum11
- scup11
- scut8
- seas4
- secs7
- sect7
- seen5
- sees4
- sego6
- segs6
- seif7
- seis4
- sels5
- semi7
- send6
- sene5
- sent5
- sers4
- sets4
- sewn8
- sews7
- sexy13
- shes6
- shin7
- shoe6
- shoo6
- shun8
- sibs7
- sice7
- sick11
- sics7
- side5
- sign7
- sike8
- silo5
- sims7
- sine5
- sing7
- sinh7
- sink9
- sins5
- sipe7
- sips7
- sire4
- sirs4
- site4
- sits4
- size13
- sizy15
- skin9
- skis8
- sloe5
- slue6
- sned6
- snib8
- snip8
- snit5
- snob8
- snog7
- snot5
- snow8
- snub9
- snug8
- snye7
- sobs7
- sock11
- sods5
- soil5
- soke8
- sole5
- soli5
- solo5
- sols5
- some7
- sone5
- song7
- sons5
- sook8
- soon5
- soot4
- sops7
- sore4
- sori4
- sorn5
- sots4
- souk9
- soul6
- soup8
- sour5
- sous5
- sown8
- sows7
- soya6
- soys6
- spec10
- spic10
- spin8
- spue8
- spun9
- sris4
- stey6
- stun6
- stye6
- subs8
- such10
- suck12
- suds6
- sued6
- suer5
- sues5
- suet5
- suit5
- sumo8
- sums8
- sung8
- sunk10