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From letters S, C, A, N, D, I, U, M  I made following words

8 letter words

scandium[13]

6 letter words

muscid[11], manics[10], amicus[10], umiacs[10], cumins[10], mucins[10], canids[9], nicads[9], dunams[9], maunds[9], nudism[9], acinus[8], animus[8], unsaid[7]

5 letter words

mucid[10], amnic[9], manic[9], micas[9], umiac[9], cumin[9], mucin[9], musca[9], sumac[9], music[9], canid[8], cnida[8], nicad[8], acids[8], asdic[8], cadis[8], caids[8], amids[8], maids[8], damns[8], minds[8], adunc[8], dunam[8], maund[8], scudi[8], dumas[8], mauds[8], cains[7], amins[7], mains[7], minas[7], uncia[7], incus[7], manus[7], minus[7], munis[7], nidus[6], unais[5]

4 letter words

mica[8], cams[8], macs[8], scam[8], mics[8], scum[8], acid[7], cadi[7], caid[7], amid[7], maid[7], damn[7], mind[7], cads[7], scad[7], disc[7], dams[7], mads[7], dims[7], mids[7], duci[7], duma[7], maud[7], cuds[7], scud[7], muds[7], cain[6], amin[6], main[6], mina[6], asci[6], aims[6], amis[6], sima[6], cans[6], scan[6], mans[6], nims[6], unci[6], maun[6], muni[6], amus[6], muns[6], aids[5], dais[5], sadi[5], said[5], ands[5], dans[5], sand[5], dins[5], duns[5], ains[4], anis[4], sain[4], unai[4], anus[4]

3 letter words

cam[7], mac[7], mic[7], cum[7], cad[6], dam[6], mad[6], dim[6], mid[6], cud[6], mud[6], aim[5], ami[5], can[5], man[5], nam[5], nim[5], sac[5], cis[5], sic[5], mas[5], ism[5], mis[5], sim[5], amu[5], mun[5], mus[5], sum[5], aid[4], and[4], dan[4], din[4], ads[4], sad[4], dis[4], ids[4], dui[4], dun[4], ain[3], ani[3], ais[3], ins[3], sin[3], sau[3], nus[3], sun[3], uns[3]

2 letter words

am[4], ma[4], mi[4], mu[4], um[4], ad[3], id[3], ai[2], an[2], na[2], in[2], as[2], is[2], si[2], nu[2], un[2], us[2]