use '?' for JOKER (blank)

From letters V, I, C, I, S, S, I, T, U, D, I, N, O, U, S  I made following words

15 letter words

vicissitudinous[21]

12 letter words

divisionists[16]

11 letter words

divisionist[15]

10 letter words

discussion[13]

9 letter words

viscounts[14], divisions[13], invidious[13], discounts[12], insidious[10], sinusoids[10], sinusitis[9]

8 letter words

inviscid[14], vidicons[14], oviducts[14], viscount[13], division[12], cissoids[11], dictions[11], conduits[11], discount[11], noctuids[11], scission[10], consists[10], suctions[10], sinusoid[9], studious[9], sunsuits[8]

7 letter words

vidicon[13], viscoid[13], oviduct[13], vicious[12], viscous[12], cissoid[10], idiotic[10], diction[10], indicts[10], discuss[10], dunitic[10], conduit[10], noctuid[10], inducts[10], visions[10], consist[9], tocsins[9], cousins[9], suction[9], nudists[8], studios[8], stounds[8], insists[7], outsins[7], sinuous[7], sunsuit[7]

6 letter words

viscid[12], covins[11], viscus[11], divots[10], voduns[10], discos[9], indict[9], dicots[9], discus[9], induct[9], vision[9], visits[9], vinous[9], ionics[8], scions[8], sonics[8], tocsin[8], tonics[8], stoics[8], cousin[8], cussos[8], cutins[8], tunics[8], coitus[8], counts[8], cistus[8], custos[8], scouts[8], iodins[7], idiots[7], odists[7], sounds[7], nudist[7], studio[7], donuts[7], stound[7], insist[6], outsin[6], suints[6], snouts[6], tussis[6]

5 letter words

vinic[10], covin[10], voids[9], divot[9], vodun[9], iodic[8], disci[8], disco[8], sodic[8], discs[8], dicot[8], scudi[8], scudo[8], scuds[8], ducts[8], vinos[8], visit[8], ionic[7], cions[7], coins[7], icons[7], scion[7], sonic[7], ontic[7], tonic[7], stoic[7], cists[7], costs[7], scots[7], incus[7], conus[7], uncos[7], cusso[7], cutin[7], tunic[7], count[7], cutis[7], ictus[7], cunts[7], scout[7], scuts[7], uncus[7], uncut[7], iodin[6], dinos[6], nitid[6], idiot[6], tondi[6], dints[6], doits[6], odist[6], nidus[6], nodus[6], sound[6], udons[6], donut[6], duits[6], dunts[6], dusts[6], studs[6], intis[5], snits[5], snots[5], stoss[5], nisus[5], sinus[5], suint[5], units[5], snout[5], tonus[5], situs[5], suits[5], stuns[5], ousts[5]

4 letter words

odic[7], disc[7], cods[7], docs[7], cion[6], coin[6], coni[6], icon[6], cons[6], sics[6], coss[6], otic[6], cist[6], tics[6], nidi[5], dino[5], nodi[5], dins[5], dons[5], nods[5], diss[5], doss[5], sods[5], dint[5], doit[5], dits[5], nisi[4], ions[4], sins[4], sons[4], inti[4], into[4]