bbbbbb bhutto bo-hoo bobrun bonbon bonnor bonnot bonnut bonobo bonton booboo boohoo booton borbon borbor bornon bornto bororo borton boruth bothr- bothun botoro botton boubou bounou bourou bourth boutob bouton bronno bront- bronto brotto brount brubru bruron bruton brutto btooth buborn bububu bunton burbot burbur burhou burnou burnut burotu burton burutu butbro butron button buttto buutuo h-hour hobnob hohhot hohoho honnor honor- honour honton hoohoo hooroo hooton horonu hororo horror horton hortor hotbot hotnot hotoro hotton hottot hottub houton houtou htonbo htruth hubbub huboon hububb huh-uh huhhot hunnur hunton hurroo hurth huthur huthut hutton n-toon nhrtbt nobbut noboru non-no nonhot nonono nonoon noonoo noonor noonto norton notho- nothot notour notout notron notton nottoo noturn nounou ntuntu nuh-uh nunton nurton obturb ohnono ohohoh ohtoto onhuno ontour oohooh oooooo oroton orrho- orrour ortho- ottoor ouroun ourton outour outrun outtro rhobtb roboto ronnon ronron rooton rothun rotour rotout rotrou rotton rounou routot rubbon rubbot rubout rubro- rubutu ruhroh run-on runbot runout runton rurutu rutour tbontb thonon thonor thornn thoro- thoron thourt thouth throut thunor thurbo to-on toboot toburn tohoro tonbon tonbur tonono tonoro tonour tonton toohot tootoo tororo toroth tortor tortou totnor totoro totrot toubon touhou touron tourou touton toutou toutuo tronoh tronto trotro truont tuotuo turbo- turbot turnon turnor turnto turron turton turtur tururu tutour tutton tuttut u-boot u-turn ubuntu uh-huh unboot unborn unburn unh-uh unhunh unhurt unroot unruth untorn unturn urhobo urturn uthorn utnoor utouth utroor