d-rod ddddd dholl dhond dhool dhoon dhrol dhuhr dhund dhunn do-do do-ol dodol dodon dodoo dodow dodro dohol dohrn dohul dollo dollu dolno dolon dolor dolow dondo donho donon donor donow doodo doorn dorno doron dorud doull douro down- droll drood drool droon drouh droul droun drowh drown drwho duddo dudon dudou dudow duhon dullu dundo dunno dunod dunun durno duron duruh dword hhhhh hhour hlddr ho-ho ho-oh hoddu hodhr hodod hodur hohol hollo holo- holon holor holou holul hondo honno honor honud hoold hoond hoord hoorn horno horod horol horon horow horro horru hould hound hourd howdo howru hudud hudul hudur huhuh hullo hulon hulun huolu huorn hurll huron hurow huuru hwood l-ron loddo lodno lodro lohho lohur lollo lolol londo loord loron lorun lound lourd louro lownd lowno lowon luddu lulul lundu lurun lword ndour ndulu nduru nnooo no-do no-no noduh nohno nohor nohow noldo non-u nondo nonno nonoh noonu noord nordo noron norro norun nould nowlu nowon nowor nu-nu nudol nudur nuhuh nullo nunon nunun nuoro nurlu nurun nwlld nwodo oddur odolo odoul odour odowd odudu oduro oh-oh ohhow ohorn ohour ohwow ollon ollur olord olour ondol onhld onhow onlow onnow onond onoon onorn onour ooooh ooooo ordon ordro orhow orlon orlow ornon orodo orold orolu orono orrow oruro oudon oullo oulon oulun ouoro ourno ourol owdlu oword rdllr rhod- rhodo rhoon ro-ro rodl rodon rodor rohod rohru rohun rollo rolon rondo ronno roodu roond roull round rownd rudno rudow ruhnu rullo rulon rundu runo- runon runow udol udoll uh-oh uh-uh uhdoh uhhoh uhhuh uhowo uhuru ullur ulno- ulowo ululu uluru undun undur unnun unnur unold unoor unorn unown unrol unrow unruh unrun unurn unwon urour urowo uuuuu whodo wholl whood whool whoor whord whorl whorn whorr whouh whowl whrrl whurl whurr wlouh wodou wodur woldo woldu woodd woold woond woord wordl world worod worow would wound wourd wowld wownd wowow wu-hu wuord wurld wurno wwwww