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From letters Z, I, D, O, V, U, D, I, N, E, S  I made following words

11 letter words

zidovudines[24]

10 letter words

zidovudine[23]

8 letter words

visioned[12]

7 letter words

iodized[17], ionized[16], iodizes[16], unsized[16], ionizes[15], unisize[15], divined[12], divides[12], divines[11], devious[11], envious[10], niveous[10], iodides[9], iodised[9], noddies[9], sounded[9], iodines[8], ionised[8]

6 letter words

iodize[15], dizens[15], dozens[15], zounds[15], ionize[14], seizin[14], sozine[14], divide[11], devoid[11], voided[11], divine[10], nevoid[10], videos[10], devons[10], dovens[10], voduns[10], envois[9], ovines[9], vision[9], venous[9], vinous[9], iodide[8], didies[8], didoes[8], diodes[8], iodids[8], sodden[8], indued[8], sudden[8], doused[8], iodine[7], indies[7], inside[7], iodise[7], donsie[7], noised[7], onside[7], iodins[7], indues[7], nudies[7], undies[7], undoes[7], ionise[6]

5 letter words

dozed[15], dizen[14], dozen[14], zoned[14], sized[14], dozes[14], zeins[13], zines[13], zones[13], sozin[13], dived[10], ivied[9], vined[9], video[9], devon[9], doven[9], dives[9], vised[9], vends[9], doves[9], voids[9], vodun[9], envoi[8], ovine[8], ivies[8], veins[8], vines[8], ovens[8], vinos[8], nevus[8], venus[8], didie[7], dined[7], nided[7], diode[7], iodid[7], sided[7], dosed[7], didos[7], undid[7], dudes[7], indie[6], iodin[6], dines[6], nides[6], snide[6], eidos[6], nodes[6], nosed[6], sonde[6], dinos[6], indue[6], nudie[6], dunes[6], nudes[6], nidus[6], douse[6], nodus[6], sound[6], udons[6], nisei[5], eosin[5], noise[5]

4 letter words

doze[13], zeds[13], zein[12], zine[12], zone[12], size[12], zins[12], dive[8], vide[8], vied[8], vend[8], dove[8], void[8], devs[8], vids[8], nevi[7], vein[7], vine[7], oven[7], vino[7], vies[7], vise[7], voes[7], died[6], eddo[6], dido[6], odds[6], dude[6], duds[6], sudd[6], deni[5], dine[5], nide[5], nidi[5], done[5], node[5], dino[5], nodi[5], dies[5], ides[5], side[5], dens[5], ends[5], send[5], sned[5], dins[5], does[5], dose[5], odes[5], dons[5], nods[5], dune[5], nude[5], unde[5], udon[5], undo[5], dues[5], sued[5], used[5], duns[5], duos[5], ouds[5], udos[5], sine[4], nisi[4], eons[4], noes[4], nose[4], ones[4], sone[4], ions[4], nous[4], onus[4]