use '?' for JOKER (blank)

From letters E, X, P, E, C, T, A, T, I, O, N, A, L  I made following words

13 letter words

expectational[24]

11 letter words

exceptional[22], expectation[22]

10 letter words

exaltation[17]

9 letter words

explicate[20], exception[20], expectant[20], expatiate[18], plaintext[18], placentae[13], analeptic[13], placation[13], pectinate[13], tetanical[11], lactation[11], petiolate[11], peltation[11], potential[11]

8 letter words

exaction[17], excitant[17], toxicant[17], laxation[15], taxation[15], alopecia[12], pliocene[12], patience[12], placenta[12], pentacle[12], poetical[12], conepate[12], conepatl[12], platonic[12], leptonic[12], apatetic[12], capitate[12], pancetta[12], pittance[12], analcite[10], laitance[10], election[10], panetela[10], palatine[10], petaline[10], tapeline[10], antelope[10], talapoin[10], antipole[10], catenate[10], tentacle[10], tantalic[10], coattail[10], tailcoat[10], taconite[10], octantal[10], patinate[10], pantalet[10], tinplate[10], toeplate[10], alienate[8], etiolate[8]

7 letter words

exciple[18], coaxial[16], lexicon[16], explain[16], poleaxe[16], inexact[16], exotica[16], celotex[16], toxical[16], exciton[16], expiate[16], explant[16], exploit[16], extinct[16], context[16], alexine[14], oxalate[14], textile[14], antitax[14], calipee[11], capelan[11], calpain[11], capelin[11], panicle[11], pelican[11], apnoeic[11], noplace[11], pinocle[11], pleonic[11], placate[11], capelet[11], capital[11], plicate[11], captain[11], picante[11], peacoat[11], tapioca[11], ectopia[11], picotee[11], polecat[11], capitol[11], coalpit[11], optical[11], topical[11], potence[11], caption[11], paction[11], entopic[11], nepotic[11], pectate[11], cineole[9], elapine[9], apnoeal[9], opaline[9], catenae[9], lactean[9], actinal[9], centile[9], licente[9], aloetic[9], acetone[9], aconite[9], lactone[9], lection[9], paleate[9], epilate[9], pileate[9], patinae[9], planate[9], platane[9], platina[9], pantile[9], penlite[9], petiole[9], polenta[9], potline[9], topline[9], acetate[9], lactate[9], cattail[9], lattice[9], tactile[9], nictate[9], tetanic[9], cattalo[9], calotte[9], taction[9], tonetic[9], apatite[9], tapetal[9], palette[9], peltate[9], patient[9], paletot[9], talipot[9], potteen[9], antipot[9], aeolian[7], taeniae[7], lineate[7], alation[7], elation[7], toenail[7], tetanal[7], entitle[7]

6 letter words

apiece[10], palace[10], apical[10], epical[10], plaice[10], plicae[10], canape[10], apneic[10], pencel[10], caplin[10], pencil[10], police[10], aecial[8], anlace[8], enlace[8], inlace[8], aeonic[8], canola[8], alnico[8], oilcan[8], cineol[8], enolic[8], paleae[8], apneal[8], alpine[8], penial[8], pineal[8], penile[8], apnoea[8], anopia[8], pinole[8], acetal[8], atelic[8], eolian[6], oleine[6]