4 letters
- rely7
- rend6
- repo7
- ride5
- riel5
- rile5
- rill6
- road5
- roar4
- robe7
- rode5
- rods5
- roes4
- roil5
- role5
- rolf8
- roll6
- rood5
- rope7
- rose4
- rote4
- rotl5
- roue5
- rove8
- rude6
- rued6
- ruer5
- rule6
- sell6
- sled6
- sloe5
- sold6
- sole5
- sord5
- sore4
- tell6
- toed5
- told6
- tole5
- toll6
- tore4
- torr4
- trod5
- veld10
- vole9
- weld9
- well9
- wold9
- word8
- wore7
- yeld8
- yell8
- yore6
- zero13