ogugu ogura olala olamb olana olang olanu olaru olgun ollam ollon ollur olman olomu olona olour olumu omala omalo omama omana omang omara omarr ombla ombra omman omoon omoro omran omron omulu omuma omura onaga onall onano onaol onaon onara ongar ongon onman onmun onoba onoff onoma onoon onora onorn onour onran onuma ooman oomba oonga ooola ooooo oraal oraba oralb orama oramo orana orang oraon orara orbal orban orbom orfar orfor orful orgal organ orgon orgul orgun orlan orlon orman ormur ornan ornon ornua orobo orolu oromo orona orono oroua orrgo orrum oruga oruro ouara oulfa oullo oulon oulun ouona ouoro oural ouran ourba ourno ourol ra-ra raaba raaff raagu raaor rabab rabal raban rabba rabon rabor rabou rabul rabun rafal rafar raffa raffl rafgl ragam ragan ragga ragno ragon ragoo ralla rallo ralon ramal raman ramar ramba rambo ramla ramma rammu ramna ramol ramon ramor ramul ranal ranam ranau ranga rango rangu ranlo ranma ranna ranno rannu ranon ranua ranum raouf raoul raraf rarbg raron raugu rauma rauna raung rauno rauon rfala rmnmn ro-ro roall roana roann robab robar robbo robo- robon robor robun robur roffa rofor rogal rogan rogla rogna rogno rolag rolao rolfo rolga rolla rollo rolmo rolon rolua romag romal roman romao romfo romon ronal ronan ronga rongo rongu ronno rooba rooma roomu roong roral roram rorbu rorra rouba roull rouma roumm roung roura rraga rragb ruala ruana ruang ruano rubab ruban rubba rubof rubon rubor rubra ruffo rufo- rufol rugal rugao rugla rugma rulan rullo rulon rumal ruman rumba rumbo rummo rummu rumor runan runga rungu runo- runof runon ruomu rural ruran u-man uaroo ubobo uboga ufana ufgau ufofu uforb ufuma ugala ugboa uggla ugoff ugola ugong ugro- ugrug ulaan ulala ulalu ulama ulang ulano ulbra ulgan ullal ullam ullar ullfa ulloa ullur ulman ulnar ulno- ulong ulrum ulula ululu uluru umaga umala umana umaru umbar umblu umbra umbro umman umong umour umran un-go unafr unama unamo unara unarm unaru unbag unban unbar unfun unfur ungag ungar ungma ungon ungra ungul ungum ungur unman unmol unnam unnao unnau unnun unnur unona unoor unorn unrar unrol unrra unrug unrun unurn uolba uorga uraan uraba uraga urago uralo uran- urana urano urban urbar urgal urgun urlam urlar urman urnal urola uroob urour urram urrao uruan urubu uruma uugla uumaa uuuuu