4 letters
- reps7
- rice7
- rick11
- riel5
- rile5
- rime7
- rims7
- rink9
- rins5
- ripe7
- rips7
- rise4
- risk8
- ruck12
- rues5
- ruin6
- rule6
- rump11
- rums8
- rune6
- runs6
- ruse5
- rusk9
- scum11
- scup11
- seek8
- seel5
- seem7
- seen5
- seep7
- seer4
- seme7
- semi7
- sene5
- sere4
- sice7
- sick11
- sike8
- silk9
- simp10
- sine5
- sink9
- sipe7
- sire4
- skee8
- skep11
- skim11
- skin9
- skip11
- slim8
- slip8
- slue6
- slum9
- slur6
- snip8
- spec10
- spic10
- spik11
- spin8
- spue8
- spun9
- spur8
- suck12
- suer5
- sulk10
- sump11
- sunk10
- supe8
- sure5
- ukes9
- umps11
- unci9
- uric8
- urns6
- user5