4 letters
- lich10
- lier5
- lieu6
- lire5
- lube9
- luce9
- lure6
- mice10
- mire7
- much13
- mure8
- nice8
- ouch10
- pech12
- peri7
- pice10
- pier7
- puce11
- pure8
- puri8
- race7
- rebs7
- reck11
- recs7
- reif7
- rein5
- reis4
- resh6
- rhea6
- rhus7
- ribs7
- rice7
- rich9
- rick11
- ride5
- riel5
- rife7
- rile5
- rime7
- ripe7
- rise4
- rite4
- rive8
- robe7
- roue5
- rube8
- rubs8
- ruby10
- ruck12
- rude6
- rued6
- ruer5
- rues5
- ruin6
- rule6
- rune6
- ruse5
- rush7
- ruth7
- shri6
- sibb10
- sice7
- sire4
- such10
- suer5
- sure5
- thir6
- thru7
- tier4
- tire4
- true5
- tube8
- unbe9
- unci9
- urbs8
- urea5
- urge7
- uric8
- user5
- verb11
- vibe11
- vice11
- vier8
- weir7
- whir9
- wich12
- wire7
- yech11
- yuch12
- zebu17