radar radau radja radom rajab rajam rajao rajar rajjo rajju rajma rajoa rajub rajur ramar ramba rambo ramma rammu ramor rampa rampo rapar rapor rappa rapur rauda rauma raupo raupp rdram ro-ro roadb robab robar robbo robo- robop robor robur rodau rodbo rodda rodor rojam romad romao rompo rompu rooba roodu rooma roomu roopa ropar roram rorbu rorra rouba rouma roumm roura rprop rraup rubab rubba rubor rubra rubup rudar rudra rumba rumbo rummo rummu rumor rumpo ruomu u-dub u-pop uapou uarda uaroo ubobo udapb udara udarj udora umaru umbar umbra umbro umoja umour umpra umudu up-do upara upard upbar upmod uppar upupa uraba urbar uroob urooj urour urram urrao urubu uruma uuard uudam uumaa uurad uuuuu