reber rebon rebun reege reene reere reerh regen reger regge reggo regne regno regur reher rehoe rehon rehue reken rekke rekne rekon rekun renee reneg rener renge rengg rengo renke renko renku renne renno reno- renou reone reorg rere- reree rerob rerun reuen reuer reune rheen rhene rheo- rhoen rhoeo rhone rhoon ro-ro robbe robbo roben rober robo- robon robor robun robur roero rogen roger rogge roghe rogho rogno rogue rohne rohob rohru rohun rokee roker rokke rokkk rokon ronee ronen roneo ronge rongo rongu ronk- ronke ronko ronne ronno ronok rooer rooge rooke rookh roone roong roore rooue rorbu rorer rorke rouen rouer rouge rough rouhe rouke rouko roune roung roure rubee ruben ruber rubke rubon rubor ruegg ruere rueun rugen ruger rugge rughe rughh ruhen ruhnu ruhub ruken rukke runer runge rungu runne runo- runon ubeen uber- ubobo ueken ugene ugong ugro- ugrug uh-ee uh-oh uh-uh uhhoh uhhuh uhuru ukeke ukobu ukong ukuug un-go unger ungok ungon ungur unhue unhug unken unker unkur unnun unnur unoor unorn unrug unruh unrun unurn uouee ureo- urger urgun urker urkun urnok uroob urour urubu uuork uuuuu