murar murau murdi murdo murdu muria murid murmi muroi murom muror murra murri murro murru murua murud murum o-r-b oaror obaba obadi obaid obama obara obdam obiba obimo obira obodo obora oboro obrab obrad obrom obudu odaba odaia odama odara oddba oddur odibo odiid odium odoom odori odour odria odudu oduom oduro oibab oidia oidor omama omara omari omarr omaui ombra ombud omiai omoro omuma omura ooioo oomba ooooo oraba orabi oraio orama oramo orara orari orbad orbom ordib ordro oriab oribi oridb orium orm-d ormia ormod ormur orobo orodo oromo oroua orria orrum oruro ouada ouara ouida ouir- ouoro ourba ouria ra-ra raaba raaor raard rabab rabad rabai rabba rabbi rabda rabia rabid rabiu rabor rabou rabri rabud radar radau raddi radi radia radii radim radio radir radom raidi raido raima raimi raimo raimu raird ramai ramar ramba rambo ramdi ramim ramma rammu ramor raoui rauda rauma rdram riaba riada ribar ribbi ribo- ridar rimar rimau rimbo rimmi rimou rimur riria riuma rmdir ro-ro roadb roadi robab robai robar robbi robbo robo- robor robur rodau rodbo rodda roddi rodia rodor rodri romad romao romia rooba roodi roodu rooma roomu roram rorbu rorid rorra rouba rouma roumi roumm roura rubab rubai rubba rubbi rubia rubid rubim rubio rubor rubra rudar rudra ruiru rumba rumbo rumia rummi rummo rummu rumor ruomu u-dub uarda uaroo ubai ubaid ubari ubiad ubida ubirr ubobo udara udora udria uibai uimid uiro umami umari umaru umbai umbar umbra umbri umbro umido umiri umour umudu uraba urari urbar urbia urdoi urmai urmia uromi uroob urour urram urrao urria urubu uruma urumi ururi uuard uudam uumaa uurad uuuuu