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From letters X, Y, L, I, D, I, N, E, S  I made following words

9 letter words

xylidines[20]

8 letter words

xylidine[19], xylidins[19]

7 letter words

xylidin[18], snidely[11], lindies[8]

6 letter words

sexily[16], lynxes[16], deixis[14], nixies[13], yields[10], dynels[10], linsey[9], lysine[9], indies[7], inside[7], sileni[6]

5 letter words

index[13], nixed[13], nixie[12], lexis[12], silex[12], nixes[12], yield[9], dynel[9], lindy[9], lysed[9], idyls[9], dynes[9], liney[8], lysin[8], indie[6], lined[6], deils[6], delis[6], idles[6], isled[6], sidle[6], slide[6], dines[6], nides[6], snide[6], lends[6], nisei[5], lenis[5], liens[5], lines[5]

4 letter words

dexy[15], nixy[14], lynx[14], sexy[14], ilex[11], nixe[11], yeld[8], idly[8], idyl[8], deny[8], dyne[8], deys[8], dyes[8], yids[8], inly[7], liny[7], leys[7], lyes[7], lyse[7], syli[7], snye[7], syne[7], yens[7], yins[7], deil[5], deli[5], diel[5], idle[5], lied[5], deni[5], dine[5], nide[5], nidi[5], lend[5], dies[5], ides[5], side[5], dels[5], elds[5], sled[5], lids[5], sild[5], slid[5], dens[5], ends[5], send[5], sned[5], dins[5], lien[4], line[4], isle[4], leis[4], lies[4], sine[4], nisi[4], lens[4], lins[4], nils[4]

3 letter words

dex[11], lex[10], nix[10], sex[10], six[10], xis[10], dey[7], dye[7], yid[7], ley[6], lye[6], yen[6], yin[6], yes[6], sly[6], syn[6], die[4], del[4], eld[4], led[4], lid[4], den[4], end[4], din[4], eds[4], dis[4], ids[4], lei[3], lie[3], lin[3], nil[3], sei[3], els[3], les[3], sel[3], lis[3], ens[3], sen[3], ins[3], sin[3]

2 letter words

ex[9], xi[9], ye[5], de[3], ed[3], id[3], el[2], li[2], en[2], ne[2], in[2], es[2], is[2], si[2]