h-hour ho-hum hohhot hohoho hokuto hoohoo hookor hookum hooroo hororo horror hortor hotoro hottot houtou htruth huh-uh huhhot hukkok humhot humhum hummum humour hurroo hurth hurumu huthur huthut khoroo khoruk khorum khuhro khutor kkoktu kohoku kohout kohtru kokkoh kokoku kokomo kokoro kokott komkor komoro komoto komtok komuro kookoo koothu kootoo koottu korkor korkut kormuk koromo kororo koroum koruru kothur kotoko kottur kotuku koukou kouoro kourou kourtt koutou krokom kukuom kumkum kummuh kumukh kumutu kurmuk kuroko kurort kurukh kururu mm-hmm mohoro mohout mohuhu mokoro mommur momoko moomoo mooruk mormor mormur moroto morrot mothur motmot motoko motomu motor- motoro motour moturu mourou mrmoto mtmtmk muhuhu muhurr muhuru muktuk mukuro mukuru murkut murmur muroto muthur mutoko mutomo muttur mutuum muumuu o-hook ohohoh ohotmu ohtomu ohtoto okumoo oohooh ookroo oomoto oooooo oromoo orrho- orrour ortho- otmoor ottoor outour outtro rokkor rokuko rokuro romour roomth roomto rothko rotork rotour rotout rotrou rottum routot ruhroh rukutu rumohr rumour rurutu rutour t-room thokur thoro- thourt thouth thromm throut tkhkot tkhkut tkoutt tohoro tokmok tokuko tokuro tommot tomoko tomort tomtom tomtor toohot tookto tootoo torkom tororo toroth tortor tortou tortum totkuh totoro totrot touhou tourou toutou toutuo trokut trotro tuktuk tumkur tumour tumtum tuotuo turko- turmut turrum turtuk turtur tururu tutour tuttut uh-huh um-hum utkoor utouth utroor utukku utukur