use '?' for JOKER (blank)

From letters G, U, A, R, D, E, D, N, E, S, S, E, S  I made following words

13 letter words

guardednesses[16]

11 letter words

guardedness[14]

10 letter words

deadnesses[12], agednesses[12], addressees[12], degaussers[12], dearnesses[11], rudenesses[11]

9 letter words

renegaded[12], degreased[12], degenders[12], dungareed[12], underaged[12], desugared[12], degaussed[12], deadeners[11], serenaded[11], renegades[11], addressee[11], degreases[11], addresses[11], degassers[11], dressages[11], dungarees[11], underages[11], ungreased[11], degausser[11], undressed[11], degausses[11], serenades[10], eagerness[10], rednesses[10], underseas[10], danseuses[10], duenesses[10], undresses[10]

8 letter words

dangered[11], deranged[11], gandered[11], gardened[11], degender[11], gendered[11], degrades[11], degassed[11], ungraded[11], deadener[10], endeared[10], renegade[10], degrease[10], deranges[10], grandees[10], grenades[10], deadness[10], agedness[10], degasser[10], dressage[10], egressed[10], degasses[10], dungaree[10], unagreed[10], underage[10], unseeded[10], daunders[10], denuders[10], sundered[10], desugars[10], graduses[10], serenade[9], ageneses[9], dearness[9], sageness[9], egresses[9], undersea[9], unerased[9], unseared[9], danseuse[9], danseurs[9], rudeness[9], assureds[9], duresses[9], guessers[9], sundress[9], anureses[8], enureses[8], sureness[8]

7 letter words

degrade[10], degreed[10], gadders[10], dredges[10], guarded[10], drudges[10], angered[9], derange[9], enraged[9], grandee[9], grenade[9], greened[9], reneged[9], deadens[9], dragees[9], greased[9], degrees[9], danders[9], reddens[9], dangers[9], ganders[9], gardens[9], genders[9], degases[9], desands[9], saddens[9], address[9], dressed[9], grassed[9], daunder[9], denuder[9], endured[9], denudes[9], dudeens[9], duendes[9], augends[9], dengues[9], desugar[9], sugared[9], gerunds[9], nudgers[9], degauss[9], guessed[9], suddens[9], endears[8], needers[8], sneered[8], enrages[8], reneges[8], senegas[8], geneses[8], resedas[8], reseeds[8], seeders[8], greases[8], sanders[8], redness[8], resends[8], senders[8], sangers[8], sadness[8], dresses[8], gassers[8], grasses[8], uneager[8], asunder[8], danseur[8], endures[8], ensured[8], sundaes[8], dueness[8], genuses[8], neguses[8], assured[8], arguses[8], saugers[8], guesser[8], sunders[8], undress[8], gausses[8], guesses[8], sudsers[8], serenes[7], seeress[7], sarsens[7], uneases[7], reseaus[7], ureases[7], ensures[7], assures[7]

6 letter words

danged[9], gadder[9], graded[9], dredge[9], deaden[8], deaned[8], needed[8], deader[8], reeded[8], agreed[8], dragee[8], geared[8], degree[8], dander[8], darned[8], redden[8], rended[8], danger[8], gander[8], garden[8], ranged[8], earned[7], endear[7], neared[7], needer[7]