hhhhh hhour ho-ho ho-oh hohum homo- honno honor hoorn horno horom horon horro horru huhuh humor humur huorn hurm huron hurum huuru mhorr mmhmm mmmmm mohon mohor mohun mohur monno mono- monon monor monro moorn mooro mormo moron moror morou morro morum morun mourn mrmom mrorr mummu mumun munro murom muron muror murrh murro murru murum nnooo no-no nohno nohom nohor nommo nomo- nomom non-u nonno nonoh noonu norm- noron norro norum norun nu-nu nuhuh nunon nunun nuoro nurmo nurun o-hum oh-oh ohmmm ohorn ohour ohrum omoon omoro omron onmun onoon onorn onour ooooh ooooo ormur ornon oromo orono orrum oruro ouoro ourno rhoon rmnmn ro-ro rohru rohun romon ronno roomu roumm ruhnu rummo rummu rumor runo- runon ruomu uh-oh uh-uh uhhoh uhhuh uhuru umhum umour unnun unnur unoor unorn unruh unrun unurn urour uuuuu