droll drood drool drouh droul duala duara dub-l dubac dubah dubal dubar dubau dubba dubbo dubla dubra dubuc dubul ducal ducor dudar duddo dudou dudua duduc duhra dulab dulac dulah dulal dulha dulla dullu durab dural durao durba durch durla duroc durra duruh h-bar h-cho ha-ha habab habba habbo habla habra habro habru hacdc hacha hadac hadad hadah hadal hadar hadda haddo haddu hadha hadhb hadoa hadol hador hadr- hadra hadur hahha halab halac halad halah halal halar halau halba halca halch halda haldu halla hallo hallu halo- haloa halol haloo halou halud harab harac harad harar harau harbo harch harco harda hardc hardr harlu haroa harod harol harra harrl harro harua harud haruo harur hauch hauho hauld haurl hcard hcooh hhhhh hhour hla-a hla-b hla-c hlddr hlora ho-ho ho-oh hoald hoard hobab hobah hobba hobol hobor hobro hobub hocco hodac hodad hodal hodar hoddu hodhr hodod hodur hohol holar holba holbr holda holla hollo holo- holor holou holub holul hooah hooch hooda hooha hoold hoora hoord horah horal horch horda horod horol horra horro horru houch houla hould hourc hourd hrach hroch hruba huaca huaco huara huard hubal hubba hubur hucal hucch hucho hucul hudar hudoc hudud hudul hudur huhla huhuh hulao hular hulch hulda hulla hullo huolu huraa hurab hurao hurll hurra huuru la-la laado laard labab labah labba labbu labda labod labor labou labra labro labur lacca lacch lacha lacub ladar laddo laddu ladha ladob ladol ladra lahar lahoh lahor lalab lalar lalla lalo- lalor lalru larch lardo lardu laroo larra larru larub larud lauba lauca lauch lauco lauda laudo laur- laura lauro lball lchad lhabu llach llado lluca lluch loaba loach loada loara lobal lobar lobau lobbo lobo- lobor locad local locdb locha locho loco- locro loddo lodha lodla lodro lohar lohho lohra lohur lolla lollo lolol loobu looch loola loora loord loral lorca lorch lorra louch lourd louro luach luadh luard lubao lubba lubla lubra lubur lucao lucar lucca lucha luchu lucur ludab luddu lulab lulal lulla lulua luluc lulul luoba lurch o-r-b oarac oaror obaba obala obara obhor obodo obolo obora oboro obrab obrad obudu ocado ocala ocara ocaro occar occra occur ochl- ochoa ochra ochro ocllo ocora ocr-a ocr-b ocrad ocul- oculo odaba odala odara oddba oddur odhal odhra odola odolo odoul odour odudu oduro oh-oh ohaba ohada ohalo ohara oharu ohchr ohlau ohoba ohour ohrob ohura olala olaru olcha olhao olhar ollur olord olour ooola ooooh ooooo oorah oraal oraba orach oralb orara orbad orbal orcad orcha ordal ordoc ordro orduc orlah orobo oroch oroco orodo oroha orold orolu oroua orrca oruch oruro ouada ouara oucho oulad oullo ouoro oural ourba ourol r-co- ra-ra raaba raaor raard rabab rabac rabad rabah rabal rabba rabda rabha rabor rabou rabud rabul racah racal racch racha radal radar radau radha radla radlo raduc radul rahab rahal rahul ralla rallo raoul rauch rauco rauda rccar rcola rcolo rcuda rdllr rhabd rharb rhod- rhoda rhodo ro-ro roach roadb roald roall robab robar robbo robo- robor robur rocar rocca rocco rocha rocoa rocor rocou rodau rodbo rodda rodl rodoc rodor rohal rohob rohod rohru rolao rolla rollc rollo rolua rooah rooba roodu roral rorbu rorra rouba rouch roull roura ruach ruaha ruala rubab rubba rubor rubra rucul rudar rudha rudra ruhab ruhla ruhub rullo rural u-dub uacrr uarda uaroo ubach ubald ubobo uchar uchoa uchuu udala udall udara udhao udhar udol udoll udora uh-oh uh-uh uhaul uhdoh uhhoh uhhuh uhura uhuru ulala ulalu ulbra ullah ullal ullar ullca ulloa ullur ulula ululu uluru uolba uraba urach uralo urbar urlar urola uroob urour urrao urubu urucu uuard uurad uuuuu