5 letters
- repay10
- repin9
- repps11
- reran6
- rerun7
- resin6
- retia5
- rewan9
- rewin9
- rheas7
- rheum11
- rhino8
- riant6
- rinse6
- riped9
- ripen9
- riper8
- ripes8
- risen6
- riven10
- rouen7
- ruana7
- ruche11
- rugae8
- ruing9
- ruins7
- rumen10
- runes7
- runic10
- rupee9
- rutin7
- saner6
- sarin6
- sepia8
- serai5
- serin6
- shape10
- share7
- sharn8
- sharp10
- shear7
- shier7
- shine8
- shire7
- sieur6
- siren6
- sirup9
- snare6
- sneap9
- snipe9
- spahi10
- spare8
- spean9
- spear8
- speir8
- spier8
- spine9
- spire8
- sprue9
- spurn10
- super9
- supra9
- surah8
- taper8
- tapir8
- taupe9
- tenia6
- terai5
- thane8
- thein8
- their7
- thine8
- thrip10
- tinea6
- train6
- trine6
- tripe8
- tuner7
- uhlan10
- ulnae8
- ulnar8
- ulpan11
- unais7
- unapt10
- unarm10
- unary9
- unbar10
- uncap13
- uncia10
- under8
- unhat9
- unhip12
- unite7
- unpeg12
- unpen11
- unpin11
- unrig9
- unrip10
- untie7
- unzip19
- upend11
- upped13
- upper12
- uraei6
- urare6
- urari6
- urase6
- urate6
- urban10
- urbia9
- ureal7
- ureas6
- ureic9
- urial7
- urine7
- ursae6
- usher8
- usnea7
- uteri6
- viper12
- whaup14
- whine11
- wiper11
- xenia13
- yearn8
- zaire14