4 letters
- nope8
- oops7
- open8
- opes7
- opus8
- peen8
- pees7
- pens8
- peon8
- peso7
- pone8
- pons8
- pony10
- poon8
- pose7
- posy9
- puns9
- puny11
- puss8
- pyes9
- seep7
- sops7
- soup8
- spue8
- spun9
- supe8
- sups8
- upon9
- ores4
- ours5
- oyer6
- rees4
- roes4
- rose4
- rosy6
- roue5
- rues5
- rune6
- runs6
- ruse5
- ryes6
- seer4
- sere4
- sers4
- sore4
- sorn5
- sour5
- suer5
- sure5
p -
r -