use '?' for JOKER (blank)

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

10 letter words

xenocrysts[22]

9 letter words

xenocryst[21]

7 letter words

xysters[17], sextons[14], coyness[12], encysts[12], sensory[10], oysters[10], storeys[10], censors[9], cornets[9], corsets[9], costers[9], escorts[9], scoters[9], sectors[9], nestors[7], stoners[7], tensors[7]

6 letter words

onyxes[16], oryxes[16], xyster[16], xystos[16], cortex[15], sexton[13], oxters[13], sextos[13], coneys[11], coseys[11], cressy[11], encyst[11], coyest[11], cytons[11], syrens[9], stoney[9], sentry[9], oyster[9], storey[9], toyers[9], tressy[9], stroys[9], censor[8], crones[8], recons[8], scones[8], corses[8], crosse[8], scores[8], scorns[8], cornet[8], centos[8], contes[8], corset[8], coster[8], escort[8], rectos[8], scoter[8], sector[8], scents[8], cestos[8], cosets[8], cosset[8], escots[8], crests[8], senors[6], sensor[6], snores[6], nestor[6], noters[6], stoner[6], tenors[6], tensor[6], toners[6], trones[6], onsets[6], setons[6], stenos[6], stones[6], sterns[6], rosets[6], sorest[6], stores[6], torses[6], tosser[6], tsores[6], snorts[6]

5 letter words

xysts[15], coxes[14], exons[12], oxter[12], sexto[12], sexts[12], coney[10], coyer[10], corny[10], crony[10], cosey[10], syces[10], syncs[10], cyton[10], cysts[10], onery[8], nosey[8], syren[8], oyers[8], yores[8], snyes[8], sonsy[8], toney[8], entry[8], toyer[8], tynes[8], stony[8], treys[8], tyers[8], tyres[8], ryots[8], story[8], stroy[8], troys[8], tyros[8], styes[8], crone[7], recon[7], cones[7], scone[7], ceros[7], cores[7], corse[7], score[7], corns[7], scorn[7], coses[7], cress[7], cross[7], cento[7], conte[7], oncet[7], recto[7], cents[7], scent[7], coset[7], cotes[7], escot[7], crest[7], torcs[7], sects[7], costs[7], scots[7], senor[5], snore[5], noses[5], sones[5], roses[5], sores[5], sorns[5], noter[5], tenor[5], toner[5], trone[5], notes[5], onset[5], seton[5], steno[5], stone[5], tones[5], nerts[5], rents[5], stern[5], terns[5], roset[5], rotes[5], store[5], tores[5], torse[5], snort[5], nests[5], snots[5], rests[5], tress[5], sorts[5]

4 letter words

cone[6], once[6], cero[6], core[6], corn[6], cons[6], recs[6], cors[6], orcs[6], rocs[6], eons[4], noes[4], nose[4], ones[4], sone[4], erns[4], eros[4], ores[4], roes[4]