rebbe reber rebon rebop rebud rebun redbd redde reden reder redhu redon redor redub redup redur reede reene reepe reere reerh rehed reher rehoe rehon rehue renbp rende rendu renee rener renne renno reno- renou reone reord repen repno repop repor reppe repro repub repun rerde rere- reree rerob rerun reuen reuer reune rhede rheen rhene rheo- rhod- rhode rhodo rhoen rhoeo rhone rhoon rnpep ro-ro robbe robbo robed roben rober robo- robon robop robor robun robur rodbo rodde roded roden rodeo roder rodon rodor roero rohde rohne rohob rohod rohru rohun ronde rondo ronee ronen roneo ronne ronno roode roodu rooer roond roone roope roore rooue roped roper roppe rorbu rorer roude rouen rouer rouhe round roune roure rprop rubee ruben ruber rubon rubor rubup ruden ruder rudne rudno ruede ruere rueun ruhen ruhnu ruhub runde rundu runed runer runne runo- runon runup rupee ruper rurde u-dub u-pop ubeen ubend uber- ubobo udder udenu uh-ee uh-oh uh-uh uhdoh uhhoh uhhuh uhuru unbed unbud undee unden under undub undue undun undur unend unerp unhue unnun unnur unode unoor unorn unpen unpeu unred unrep unruh unrun unurn uouee up-do upedu upend upenn upher upnor upone upped uppen upper uppon uprun urdee uredo ureo- urned uroob urour urubu urupe uuuuu