use '?' for JOKER (blank)

From letters G, N, O, T, O, B, I, O, T, I, C, A, L, L, Y  I made following words

15 letter words

gnotobiotically[23]

11 letter words

gnotobiotic[16], colligation[14], ontological[14]

10 letter words

boycotting[18], logicality[16], biological[15], notability[15], bilocation[14], obligation[13], cogitation[13]

9 letter words

boilingly[15], iconology[15], ontically[14], tonically[14], coyotillo[14], atonicity[14], albinotic[13], oological[12], balloting[12], collating[12], ontologic[12], latticing[12], abolition[11], coalition[11], coitional[11], collation[11], cotillion[11], octillion[11], allotting[10], totalling[10]

8 letter words

billycan[15], biolytic[15], collying[14], cooingly[14], oblongly[14], oncology[14], tangibly[14], bitingly[14], tocology[14], biologic[13], lability[13], coitally[13], locality[13], nobility[13], anticity[13], intactly[13], tonicity[13], biotical[12], alloying[12], oinology[12], tallying[12], antilogy[12], ontology[12], logician[11], obligati[11], bloating[11], locating[11], obligato[11], tabooing[11], longboat[11], battling[11], blatting[11], blotting[11], bottling[11], clotting[11], latinity[11], tonality[11], colonial[10], libation[10], boltonia[10], lobation[10], oblation[10], location[10], cotillon[10], ocotillo[10], citation[10], oogonial[9], intaglio[9], ligation[9], litigant[9], totaling[9], tootling[9], illation[8]

7 letter words

callboy[14], balcony[14], boycott[14], claying[13], aglycon[13], ignobly[13], cloying[13], biology[13], cabling[12], acyloin[12], ability[12], licitly[12], anticly[12], tallboy[12], notably[12], cattily[12], tacitly[12], cottony[12], bacilli[11], albinic[11], coalbin[11], albitic[11], abiotic[11], botanic[11], biontic[11], allying[11], agility[11], otology[11], bailing[10], balling[10], calling[10], billing[10], logical[10], illogic[10], coaling[10], boiling[10], coiling[10], bolling[10], bologna[10], cooling[10], locoing[10], oologic[10], baiting[10], tabling[10], catling[10], talcing[10], otalgic[10], boating[10], coating[10], cotinga[10], biltong[10], bolting[10], octagon[10], booting[10], batting[10], catting[10], bitting[10], glottic[10], loonily[10], anility[10], tonally[10], nattily[10], totally[10], allicin[9], billion[9], balloon[9], oolitic[9], boniato[9], coition[9], coolant[9], octanol[9], titanic[9], litotic[9], taction[9], galloon[8], oogonia[8], intagli[8], tailing[8], lilting[8], tilling[8], galliot[8], antilog[8], toiling[8], tolling[8], galloot[8], looting[8], tooling[8], tilting[8], titling[8], glottal[8], toiting[8], lotting[8], tooting[8]

6 letter words

bonaci[10], bionic[10], niobic[10], gallic[9], baling[9], lacing[9], global[9], bagnio[9], gabion[9], agonic[9], congii[9], globin[9], goblin[9], clinal[8], albino[8], alnico[8], oilcan[8], ballon[8], clonal[8], ailing[7], nilgai[7], oiling[7], gallon[7]