use '?' for JOKER (blank)

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

10 letter words

accusation[14]

9 letter words

causation[11]

8 letter words

accusant[12], acoustic[12], accounts[12], auctions[10], cautions[10]

7 letter words

cocains[11], ocicats[11], account[11], caustic[11], satanic[9], sacaton[9], actions[9], atonics[9], cations[9], acinous[9], auction[9], caution[9], conatus[9], toucans[9], suction[9], atonias[7]

6 letter words

cocain[10], siccan[10], cacaos[10], conics[10], cantic[10], ocicat[10], accost[10], coacts[10], cactus[10], stucco[10], casino[8], action[8], atonic[8], cation[8], casita[8], sancta[8], actins[8], antics[8], nastic[8], coatis[8], scotia[8], cantos[8], cotans[8], octans[8], tocsin[8], tonics[8], acinus[8], cousin[8], tunica[8], toucan[8], cantus[8], uncast[8], cutins[8], tunics[8], coitus[8], counts[8], atonia[6], sonata[6], tauons[6], outsin[6]

5 letter words

cacao[9], conic[9], cacas[9], cocas[9], cisco[9], cacti[9], coact[9], cains[7], canso[7], cions[7], coins[7], icons[7], scion[7], sonic[7], actin[7], antic[7], coati[7], canto[7], cotan[7], octan[7], ontic[7], tonic[7], canst[7], cants[7], scant[7], ascot[7], coast[7], coats[7], costa[7], tacos[7], stoic[7], uncia[7], incus[7], conus[7], uncos[7], cutin[7], tunic[7], count[7], scuta[7], cutis[7], ictus[7], cunts[7], scout[7], anoas[5], antas[5], antis[5], saint[5], satin[5], stain[5], tains[5], iotas[5], ostia[5], stoai[5], santo[5], sauna[5], unais[5], tauon[5], aunts[5], tunas[5], suint[5], units[5], autos[5], snout[5], tonus[5]

4 letter words

caca[8], coca[8], cain[6], ciao[6], cion[6], coin[6], coni[6], icon[6], casa[6], asci[6], cans[6], scan[6], ocas[6], soca[6], cons[6], acta[6], cant[6], coat[6], taco[6], otic[6], acts[6], cast[6], cats[6], scat[6], cist[6], tics[6], cost[6], cots[6], scot[6], unci[6], unco[6], cunt[6], cuts[6], scut[6], anoa[4], naoi[4], anas[4], ansa[4], ains[4], anis[4], sain[4], naos[4], ions[4], anta[4], anti[4], tain[4], iota[4], nota[4], into[4], aits[4], sati[4], ants[4], tans[4], nits[4], snit[4], tins[4], oast[4], oats[4], stoa[4], taos[4], snot[4], tons[4], unai[4], anus[4], nous[4], onus[4], aunt[4], tuna[4], unit[4], auto[4], unto[4], taus[4], utas[4]