bdoor blond blood bloor blorb blund blurb blurr bo-bo bobr bodd- bodor boldo boldu boll- bollo bollu bolno bolon bondo bonon bonou bonud boold boond boord boorn booru borbo bordo born- borno bornu boro- borod boron boroo borou borro borul borun boudu boul- bould boulo bound bourd bourn brobo brodd brodo broll brolo brond bronn brood brool broon broud broun brrrr brud- brull brunn bruno bruun bubon buddu budur bulb- bull- bulou bulul bulun bundu bunud bunun buono buord burn- burol buron buroo burro burru burud burun d-rod ddddd do-do do-ol dobro dodol dodon dodoo dodro dollo dollu dolno dolon dolor dondo donon donor doodo doorn dorno doron dorud doull douro drbob drobo droll drood drool droon droul droun dub-l dubbo dubno dubon dubul duddo dudon dudou dullu dundo dunno dunod dunun durno duron l-ron lobbo lobo- lobon lobor loddo lodno lodro lollo lolol londo loobu loord loron lorun lound lourd louro lubno lubon lubun lubur luddu lulul lundu lurun ndbld ndour ndulu nduru nnooo no-do no-no nobob nobol nobuo noldo non-u nondo nonno noonu noord norbu nordo noron norro norun nould nu-nu nudol nudur nullo nunon nunun nuodb nuoro nurlu nurun o-bon o-r-b oblon obodo obolo oboro obudu oddur odolo odoul odour odudu oduro ollon ollur olord olour ondol onond onoon onorn onour ooooo ordon ordro orlon ornon orobo orodo orold orolu orono oruro oudon oullo oulon oulun ouoro ourno ourol rdllr ro-ro robbo robo- robon robor robun robur rodbo rodl rodon rodor rollo rolon rondo ronno roodu roond rorbu roull round rubon rubor rudno rullo rulon rundu runo- runon u-dub ubobo udol udoll ullur ulno- ululu uluru unbud undub undun undur unnun unnur unold unoor unorn unrol unrun unurn uroob urour urubu uuuuu