use '?' for JOKER (blank)

From letters Z, W, I, T, T, E, R, I, O, N, S  I made following words

11 letter words

zwitterions[22]

10 letter words

zwitterion[21]

9 letter words

wintriest[12]

8 letter words

ionizers[16], ironizes[16], ritziest[16], twiniest[11], twistier[11], nitrites[8], snottier[8], tenorist[8], tritones[8], introits[8]

7 letter words

ionizer[15], ironize[15], ionizes[15], zoisite[15], snowier[10], twinier[10], winiest[10], townies[10], wiriest[10], twiners[10], winters[10], wittier[10], written[10], entwist[10], twinset[10], intwist[10], nitwits[10], retwist[10], twister[10], swotter[10], ironies[7], noisier[7], inosite[7], norites[7], oestrin[7], orients[7], stonier[7], ironist[7], nitrite[7], nittier[7], tritone[7], introit[7], tiniest[7], toniest[7], retints[7], stinter[7], tinters[7], stentor[7], intorts[7], tritons[7]

6 letter words

winzes[17], wizens[17], ionize[14], seizin[14], sozine[14], sizier[14], seizor[14], zoners[14], ritzes[14], zoster[14], winier[9], nowise[9], winoes[9], rewins[9], owners[9], resown[9], rowens[9], worsen[9], townie[9], twiner[9], winter[9], twines[9], wisent[9], towies[9], twiers[9], wriest[9], writes[9], strewn[9], towers[9], worset[9], strown[9], nitwit[9], ionise[6], irones[6], nosier[6], senior[6], tinier[6], norite[6], orient[6], tonier[6], seniti[6], estrin[6], inerts[6], insert[6], inters[6], niters[6], nitres[6], sinter[6], triens[6], trines[6], sortie[6], tories[6], triose[6], nestor[6], noters[6], stoner[6], tenors[6], tensor[6], toners[6], trones[6], intros[6], nitros[6], retint[6], tinter[6], rotten[6], torten[6], intort[6], triton[6], sitten[6], otitis[6], teston[6], stotin[6], sitter[6], tetris[6], titers[6], titres[6], triste[6], otters[6], rottes[6], tortes[6], toters[6]

5 letter words

irone[5], nisei[5], eosin[5], noise[5], reins[5], resin[5], rinse[5], risen[5], serin[5], siren[5], osier[5], senor[5], snore[5], irons[5], noirs[5], noris[5], ornis[5], rosin[5], inert[5], inter[5], niter[5], nitre[5], trine[5], torii[5], noter[5], tenor[5], toner[5], trone[5], intro[5], nitro[5], inset[5], neist[5], nites[5], senti[5], stein[5], tines[5], intis[5], notes[5], onset[5], seton[5], steno[5], stone[5], tones[5], resit[5], rites[5], tiers[5], tires[5], tries[5], nerts[5], rents[5], stern[5], terns[5], roset[5], rotes[5], store[5], tores[5], torse[5], riots[5], rotis[5], tiros[5], torsi[5], trios[5], trois[5], snort[5], tetri[5], titer[5]