nuruk nurun ra-ra raaba raabe raack rabab rabac rabak raban rabba rabbe rabke rabun racak racan race- racer racka rakaa rakab rakan rakee rakek raken raker rakke ranac ranae ranau ranca rance ranck ranee ranen ranka ranke ranna rannc rannu ranua rarae rareb raree rarer rauen rauna rccar reace reack reake reane rear- reaue rebab rebak reban rebar rebbe rebec reber rebra rebun recan recca recce recea recen recka recke reckn recue recur reean reece reena reene reere reken rekka rekke rekne rekun renac renan renau renca rence renea renee rener renka renke renku renna renne reran rere- reree rerun reuar reuen reuer reune ruaka ruana ruane ruark rubab ruban rubba rubee ruben ruber rubke rubra rucer rucka rueca ruere rueun ruken rukke runan runcu runec runer runne rurak ruran rurec rurka u-cee uacrr ubank ubeen uber- uceku ueken ukaea ukanc ukeke unaka unara unark unaru unban unbar uncae unkar unken unker unkur unnau unnun unnur unrar unrra unrun unurn uraan uraba uran- urana urare urban urbar urea- ureae urena urera urker urkun urrea uruan urubu uruce urucu uuuuu