5 letters
- redip9
- reign8
- reink10
- reins6
- relic9
- relit6
- renal7
- renig8
- renin7
- reoil6
- repel9
- repin9
- reply11
- rerun7
- resin6
- rewin9
- riels6
- rifle9
- riled7
- riles6
- riley8
- rille7
- rinse6
- riped9
- ripen9
- riper8
- ripes8
- risen6
- riven10
- rouen7
- ruble10
- ruing9
- ruins7
- ruled8
- ruler7
- rules7
- rumen10
- runes7
- runic10
- rupee9
- rutin7
- serin6
- sieur6
- siren6
- sirup9
- slier6
- slipe9
- slurp10
- snipe9
- speil9
- speir8
- spiel9
- spier8
- spile9
- spine9
- spire8
- sprue9
- spurn10
- super9
- tiler6
- trine6
- tripe8
- tulip10
- tuner7
- ulcer10
- ulnae8
- ulnar8
- ulpan11
- uncle11
- under8
- unhip12
- unite7
- unled9
- unlet8
- unlit8
- unpeg12
- unpen11
- unpin11
- unrig9
- unrip10
- untie7
- until8
- unzip19
- upend11
- uplit10
- upper12
- uraei6
- ureal7
- ureic9
- urial7
- urine7
- uteri6
- utile7
- viler10
- viper12
- wiper11