bobbobbobs bocconotto bonnbonbon bonobonono bonusbonus bootsroots bournbrook brooktrout buttstocks coccotorus cocosnonos concoctors constructs contoocook cooscoosoo costusroot count-noun courtcosts couscousou crossbucks crosscourt crosscross knockknock kooskoosoo kotukutuku kouroukoro kouroukoto kukkurukuu nocturnous non-concur nonconcurs obstructor occurtonut oksnonooks ortoncourt ourococcus rko-boston robotburns robustuous rockssocks rococococo roost-cock roostcocks root-stock rootstocks scottsboro scottstots skcorrocks sour-crout sourkrouts soussoubro stockcross stouttouts strobotron stucktruck substructs sun-struck toonstruck torontoont tortotubus touroukoro toutstouts trusstrust tuco-tucos turboboost tutortrout unobstruct unsonorous unstubborn ununctuous