5 letters
- renig8
- renin7
- rhino8
- rhumb14
- riant6
- ricin9
- right9
- rings8
- roach10
- robin9
- rough10
- ruana7
- ruche11
- rugae8
- rugal9
- rugby13
- ruing9
- ruins7
- rumba12
- rungs9
- runic10
- runny10
- rutin7
- sabin9
- sabir8
- sahib10
- sangh10
- sarin6
- sauch11
- saugh10
- scaur9
- scrag10
- scrub12
- scuba12
- sharn8
- shrub11
- shrug10
- subah11
- sugar8
- suing9
- sunna8
- surah8
- tabun10
- thing10
- tragi7
- train6
- triac8
- tunic10
- uhlan10
- ulnar8
- umbra12
- umiac12
- unais7
- unarm10
- unary9
- unban11
- unbar10
- unbid11
- uncap13
- uncia10
- unhat9
- unhip12
- union8
- unman11
- unpin11
- unrig9
- unrip10
- uraei6
- urari6
- urban10
- urbia9
- ureic9
- urial7
- urine7
- using9
- vicar12
- vinca13
- virga11
- waugh13
- whang13
- wigan11
- winch14
- wrang11
- wring11
- wrung12