4 letters
- oleo5
- oles5
- olio5
- ones5
- only8
- onus6
- oohs6
- oops7
- open8
- opes7
- opus8
- ores4
- orgy8
- orle5
- oses4
- ouph10
- ours5
- oyer6
- oyes6
- peel8
- peen8
- peer7
- pees7
- pegs9
- pehs9
- pein8
- pele8
- pens8
- peon8
- peri7
- peso7
- phis9
- phon10
- pier7
- pies7
- pigs9
- pile8
- pili8
- pily10
- pine8
- ping10
- pins8
- piny10
- pion8
- pirn8
- pish9
- piso7
- piss7
- plie8
- ploy10
- plug11
- plus9
- pogy11
- pois7
- pole8
- polo8
- pols8
- poly10
- pone8
- pong10
- pons8
- pony10
- pooh9
- pool8
- poon8
- poor7
- pore7
- porn8
- pose7
- posh9
- posy9
- pour8
- pree7
- prey9
- prig9
- prog9
- pros7
- psis7
- pugh12
- pugs10
- pule9
- puli9
- puls9
- pung11
- puns9
- puny11
- pure8
- puri8
- purl9
- purs8
- push10
- puss8
- pyes9
- pyin10
- pyre9
- reel5
- rees4
- regs6
- rein5
- reis4
- rely7
- repo7
- reps7
- resh6
- rhos6
- rhus7
- riel5
- rigs6
- rile5
- ring7
- rins5
- ripe7
- rips7
- rise4
- roes4
- roil5
- role5
- rope7
- ropy9
- rose4
- rosy6
- roue5
- roup8
- rues5
- rugs7
- ruin6
- rule6
- ruly8
- rune6
- rung8
- runs6
- ruse5
- rush7
- ryes6
- seel5
- seen5
- seep7
- seer4
- sees4
- sego6
- segs6
- seis4
- sels5
- sene5
- sere4
- sers4
- shes6
- shin7
- ship9
- shoe6
- shog8
- shoo6
- shop9
- shri6
- shul8
- shun8
- sigh8
- sign7
- silo5
- sine5
- sing7
- sinh7
- sins5
- sipe7
- sips7
- sire4
- sirs4
- slip8
- sloe5
- slog7
- slop8
- slue6
- slug8
- slur6
- snip8
- snog7
- snug8
- snye7
- soil5
- sole5
- soli5
- solo5
- sols5
- sone5
- song7
- sons5
- soon5
- soph9
- sops7
- sore4
- sori4
- sorn5
- soul6
- soup8
- sour5
- sous5
- soys6
- spin8
- spry9
- spue8