The word subordinations is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 21
Highest Scoring Words With Friends™ Play In The Letters subordinations
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Seven Letter Word Alert: (91 words)
abiosis, abortus, abounds, adsorbs, andiron, anodont, anoints, astound, astroid, auditor, bandito, bandits, bassoon, bastion, batoids, biodots, biotins, bistros, bonsais, boudoir, bradoon, bunions, bustard, diarist, disbars, disroot, disturb, donairs, durians, dustbin, inboard, inbound, indians, indoors, innards, inroads, instars, introns, inturns, isobars, isodont, nanobot, nanodot, nanorod, nations, niobous, nitrous, nonarts, nonriot, nonsuit, notions, nudists, oboists, obtains, odorant, onboard, oration, ordains, outbids, outsoar, rainout, raisins, rations, riotous, rotunda, rotunds, sabinos, sinoids, strains, strands, studios, subsort, suitors, sunbird, sunstar, suntans, sustain, tobiano, tornado, toroids, torsion, tundras, turbans, unbaits, unbands, unbinds, unboard, unboots, unbraid, unsorts, unstain