use '?' for JOKER (blank)

From letters F, A, N, T, A, S, T, I, C, A, T, I, O, N, S  I made following words

15 letter words

fantastications[20]

14 letter words

fantastication[19]

12 letter words

fascinations[17], satisfaction[17]

11 letter words

fascination[16], fasciations[16], antifascist[16], sanitations[11]

10 letter words

fasciation[15], fantastico[15], fantastics[15], nicotianas[12], santonicas[12], catatonias[12], nictations[12], antistatic[12], sanitation[10], satiations[10]

9 letter words

fantastic[14], sainfoins[12], sinfonias[12], fantasias[12], fantasist[12], nicotiana[11], actinians[11], santonica[11], inactions[11], onanistic[11], cassation[11], canonists[11], sanctions[11], catatonia[11], nictation[11], incitants[11], citations[11], nonstatic[11], instincts[11], isostatic[11], stictions[11], constants[11], nictitant[11], atticists[11], statistic[11], sonatinas[9], satiation[9], natations[9], antistats[9]

8 letter words

fanatics[13], factions[13], fictions[13], nonfacts[13], fascitis[13], sainfoin[11], sinfonia[11], fantasia[11], infantas[11], fontinas[11], fantasts[11], scansion[10], actinian[10], inaction[10], actinias[10], cantinas[10], actinons[10], canonist[10], contains[10], sanction[10], sonantic[10], nicotins[10], canastas[10], sacatons[10], incitant[10], citation[10], cantatas[10], instinct[10], oscitant[10], tactions[10], stiction[10], constant[10], atticist[10], sonatina[8], assonant[8], onanists[8], natation[8], titanias[8], ostinati[8], annattos[8], satanist[8], instants[8], stations[8], antistat[8], attaints[8]

7 letter words

fascias[12], fiascos[12], ossific[12], fanatic[12], faction[12], fiction[12], nonfact[12], caftans[12], confits[12], fascist[12], fanions[10], fission[10], infanta[10], fontina[10], infants[10], aftosas[10], antifat[10], fantast[10], anionic[9], niacins[9], cassina[9], caisson[9], casinos[9], cassino[9], actinia[9], cantina[9], actinon[9], contain[9], nicotin[9], canasta[9], satanic[9], incants[9], stannic[9], sacaton[9], actions[9], atonics[9], cations[9], cantons[9], cassata[9], casitas[9], scotias[9], consist[9], tocsins[9], cantata[9], titanic[9], taction[9], astatic[9], octants[9], statics[9], nasions[7], atonias[7], anoints[7], nations[7], onanist[7], astasia[7], isatins[7], sonatas[7], sonants[7], titania[7], annatto[7], attains[7], titians[7], instant[7], anattos[7], station[7], statins[7], tanists[7], tatsois[7], stotins[7], attaint[7], statant[7], statist[7]

6 letter words

facias[11], fascia[11], fincas[11], ficins[11], fiasco[11], caftan[11], confit[11], fanion[9], fanons[9], infant[9], finito[9], nonfat[9], niacin[8], anisic[8], casini[8], cannas[8], casino[8], ionics[8], canons[8], conins[8], cassia[8], cansos[8], scions[8], sonics[8], incant[8], tannic[8], action[8], atonic[8], cation[8], cannot[8], canton[8], anions[6], nasion[6], inions[6], asanas[6], atonia[6]