use '?' for JOKER (blank)

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

11 letter words

centrosomes[15]

10 letter words

centrosome[14], monoesters[12]

9 letter words

monoester[11], creosotes[11], mesotrons[11], oestrones[9]

8 letter words

someones[10], necroses[10], moreness[10], ecotones[10], creosote[10], coronets[10], mesotron[10], monteros[10], moonsets[10], mootness[10], somerset[10], monsters[10], scooters[10], consorts[10], oestrone[8], estrones[8]

7 letter words

cements[11], cermets[11], someone[9], encores[9], necrose[9], moreens[9], mooners[9], censers[9], screens[9], secerns[9], censors[9], sermons[9], roscoes[9], ecotone[9], coronet[9], montero[9], cenotes[9], tonemes[9], moonset[9], centers[9], centres[9], tenrecs[9], emoters[9], meteors[9], remotes[9], cornets[9], mentors[9], monster[9], cooters[9], scooter[9], mooters[9], consort[9], crotons[9], mesteso[9], stemson[9], nostocs[9], cresset[9], resects[9], secrets[9], corsets[9], costers[9], escorts[9], scoters[9], sectors[9], senores[7], noosers[7], sooners[7], estrone[7], enroots[7], soonest[7], nesters[7], renests[7], resents[7], stereos[7], nestors[7], stoners[7], tensors[7]

6 letter words

socmen[10], comose[10], cremes[10], merces[10], comers[10], cosmos[10], cement[10], cermet[10], comets[10], comtes[10], encore[8], moreen[8], mooner[8], cooees[8], censer[8], screen[8], secern[8], censor[8], crones[8], recons[8], sermon[8], cooers[8], roscoe[8], morose[8], romeos[8], croons[8], morons[8], censes[8], scenes[8], menses[8], mesnes[8], semens[8], scones[8], mesons[8], osmose[8], recess[8], screes[8], corses[8], crosse[8], scores[8], mosser[8], scorns[8], cenote[8], toneme[8], center[8], centre[8], recent[8], tenrec[8], emoter[8], meteor[8], remote[8], cornet[8], mentor[8], cooter[8], mooter[8], croton[8], emotes[8], centos[8], contes[8], montes[8], contos[8], nostoc[8], certes[8], erects[8], resect[8], secret[8], terces[8], merest[8], meters[8], metres[8], retems[8], corset[8], coster[8], escort[8], rectos[8], scoter[8], sector[8], metros[8], motors[8], tmeses[8], scents[8], cestos[8], cosets[8], cosset[8], escots[8], scoots[8], nooser[6], sooner[6], nooses[6], sneers[6], eroses[6], senors[6], sensor[6], snores[6], rooses[6], enroot[6], enters[6], nester[6], renest[6], rentes[6], resent[6], tenser[6], ternes[6], treens[6], stereo[6], nestor[6], noters[6], stoner[6], tenors[6], tensor[6], toners[6], trones[6], torose[6], tenses[6], setose[6], onsets[6], setons[6], stenos[6], stones[6], snoots[6]