use '?' for JOKER (blank)

From letters Y, O, C, T, O, S, E, C, O, N, D, S  I made following words

12 letter words

yoctoseconds[20]

11 letter words

yoctosecond[19]

8 letter words

ecdysons[14], cocooned[13]

7 letter words

ecdyson[13], sconced[12], decocts[12], coyness[12], coyotes[12], oocytes[12], tycoons[12], encysts[12], oocysts[12], cocoons[11], sconces[11], syndets[11], condoes[10], secondo[10], seconds[10], docents[10], scooted[10], nostocs[9], snooted[8], soonest[7]

6 letter words

synced[12], decoys[12], codecs[11], decoct[11], coneys[11], cooeys[11], coseys[11], coyote[11], oocyte[11], tycoon[11], encyst[11], coyest[11], cytons[11], oocyst[11], cocoon[10], sconce[10], cosecs[10], seccos[10], doyens[10], synods[10], syndet[10], codens[9], second[9], codons[9], condos[9], scends[9], docent[9], costed[9], stoney[9], snooty[9], toyons[9], scones[8], centos[8], contes[8], contos[8], nostoc[8], scents[8], cestos[8], cosets[8], cosset[8], escots[8], scoots[8], nodose[7], noosed[7], odeons[7], sondes[7], snoods[7], stoned[7], sooted[7], tondos[7], tossed[7], nooses[6], onsets[6], setons[6], stenos[6], stones[6], snoots[6]

5 letter words

coyed[11], decoy[11], codec[10], coney[10], cooey[10], cosey[10], syces[10], syncs[10], cyton[10], cysts[10], cosec[9], secco[9], cocos[9], doyen[9], dynes[9], donsy[9], synod[9], tyned[9], toyed[9], styed[9], coden[8], coned[8], cooed[8], codon[8], condo[8], scend[8], codes[8], coeds[8], decos[8], coted[8], nosey[8], sooey[8], snyes[8], sonsy[8], toney[8], toyon[8], tynes[8], stony[8], sooty[8], toyos[8], styes[8], cones[7], scone[7], coons[7], coses[7], cento[7], conte[7], oncet[7], conto[7], cents[7], scent[7], coset[7], cotes[7], escot[7], coots[7], scoot[7], sects[7], costs[7], scots[7], odeon[6], nodes[6], nosed[6], sonde[6], snood[6], sends[6], sneds[6], doses[6], noted[6], toned[6], tondo[6], dents[6], tends[6], doest[6], dotes[6], stood[6], noose[5], noses[5], sones[5], notes[5], onset[5], seton[5], steno[5], stone[5], tones[5], snoot[5], toons[5], nests[5], snots[5], soots[5]

4 letter words

coco[8], code[7], coed[7], deco[7], cods[7], docs[7], cone[6], once[6], coon[6], cons[6], coos[6], cess[6], done[5], node[5], dens[5], ends[5], send[5], sned[5], does[5], dose[5], odes[5], dons[5], nods[5], eons[4], noes[4], nose[4], ones[4], sone[4], onos[4], soon[4]