b-room bbbbbb bibiri bibiru biburg bigboi biggio biggit bigrig bigurt biobor biomom biotti birgit biribi birog birori bitium bitour bitrig bitrot bitrum bittor bittou bittur bobbio bobiri bogoro boguti bombom bombur booboo boogum boom-o bootit borbor borgir borium bormio borogo boromo bororo botoro bottom boubou bougou bourou boutob bribir bribri brigit brimir brito- britot broggi bromio bromo- brotto brubru brutii brutti brutto brutum bubbio bububu bugbug bugiri bugout buguri bumboo bummit bumout burbot burbur burgio burgoo burgor burgui burgum burior buriro buriti burotu burrio bururi burutu butbro butmir buttir buttto buutuo gibbit gibbot giggit giggot gigiri gigour gimbri gimmor giorgi giotto giriot git-go gititu gitugu gituru gmroii go-out gobbit gobbur goboom gogbot gogoro goitom gombio gomuti googoo goombi gooroo gorbio gorgio gorgor goriot gotoit gotour gotout gotuit gourbi gourou gourri goutum grigio grigor grigri gromit grotto grugru grumio gubbio gubgub guigou guirgo guirim gurbir gurbru gurgum gurobi gurugu gutrot guttur ibibio ibrium igitur igorot igotit igougo iiooio imirim immort irobot irrour irugur itgoto itguru ittiri ittro- iturbi mbigou mbombo mbomou mibbit miburi migori mimori miombo miomir mirgor miriti mirogi miroir mirour mirror mirumo miruru mitmot mitrit mitrou mobutu moggio mogoro momigi mommur momoir moogoo moomoo moorit moormi mootit morbio morbut moribi moriro mormor mormur morogo moroii moroto morrot motmot motobi motomu motor- motori motoro motour motrio moturi moturu mougri mourou mrmoto muggio muggur muggut mugumu muguru murio- muriti muritu murium murmir murmur muroto murrit mutitu mutomo muttur muturi mutuum muumuu obourg obturb ombro- omoio- oomoto oooooo orbigo oriomo ormuri orobii oromoo orrour ortug otmoor ototoi ottogi ottoii ottoor ouioui outour outrig outtro ribbit riggot rigmio rigott rigour rigout rimbor rimout rirumu ritbum rititi ritto robbio robo-g robomb roboto romiri romour roogoo roomto rotgut rotimi rotour rotout rotrou rottum rougir routot rubbot rubigo rubout rubro- rubrum rubutu rumbur rumour rumti- rurutu rutour t-room tibbit tibio- tibiri tiboro timbro timimi timiri timoti timour timtig tirbou tirrit titbit titibu titiri to-rit toboot togout togrog toimii toitoi tomium tommot tomomi tomort tomrig tomtit tomtom tomtor toobig tootoo torbit torgot torgut torito tormit torori tororo torrit tortor tortou tortum totigi totoro totrot tottoi tougbo touitt tourou toutou toutuo tribit tribo- tribut trigit triigi trimto triour trito- tritor troggu trogir trombi trombo trotro truitt trumbo tuborg tugrug tugumi tuiuti tumour tumtum tuotuo turbit turbo- turbot turgor turgot turgut turmit turmut turrum turtur tururu tutour tuttut u-boot ubombo uburoi ugrio- uitoto umirim utigur utroor utrubi