The word miniaturized 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: 27
Highest Scoring Words With Friends™ Plays In The Letters miniaturized
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Seven Letter Word Alert: (51 words)
airtime, arenium, azimide, azurine, azurite, denarii, detrain, diamine, diazine, diimine, ditzier, imidine, inditer, inertia, interim, intrude, iridium, iridize, manured, martini, matured, minaret, miniate, mintier, minuter, munited, muriate, natured, nitride, raiment, readmit, reaudit, runtime, termini, timider, tradein, trained, unaimed, unaired, unarmed, unitize, unmated, unrated, untamed, untimed, untired, untread, untried, urazine, uridine, urinate