The word nonsteroid 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: 13
Highest Scoring Words With Friends™ Plays In The Letters nonsteroid
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Seven Letter Word Alert: (42 words)
dentins, dinners, disroot, editors, erosion, indents, indoors, indorse, intends, interns, intoned, intoner, intones, introns, ionones, isodont, nondiet, nonriot, norites, notions, orients, osteoid, rodents, roisted, roosted, rosined, snooted, snorted, sootier, sortied, steroid, stonier, storied, tendons, tension, tierods, tinders, tinners, toonies, toroids, torsion, triones