5 letters
- ounce10
- ourie6
- ousel7
- races8
- racon9
- rails6
- rains6
- raise5
- rales6
- rance9
- ranis6
- reals6
- recon9
- reins6
- relic9
- renal7
- reoil6
- resin6
- rials6
- rices8
- riels6
- riles6
- rinse6
- risen6
- roans6
- roils6
- roles6
- roose5
- rosin6
- rouen7
- roues6
- rouse6
- ruins7
- rules7
- runes7
- runic10
- saice8
- salic9
- salon7
- saner6
- sarin6
- sauce9
- scale9
- scare8
- scaur9
- scena9
- scion9
- scone9
- score8
- scorn9
- scour9
- senor6
- serac8
- serai5
- seral6
- serin6
- sieur6
- since9
- siren6
- slain7
- slice9
- slier6
- snail7
- snare6
- snarl7
- snool7
- snore6
- socle9
- solan7
- solar6
- solei6
- solon7
- sonar6
- sonic9
- sorel6
- sucre9
- sulci10
- sural7
- ulans8
- ulcer10
- ulnae8
- ulnar8
- ulnas8
- unais7
- uncia10
- uncle11
- uncos10
- uraei6
- urase6
- ureal7
- ureas6
- ureic9
- urial7
- urine7
- ursae6
- usnea7