The word overplayed 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 overplayed
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Seven Letter Word Alert: (28 words)
delayer, deplore, deprave, develop, eyedrop, layered, layover, leopard, overdye, overlap, overlay, overled, overpay, paroled, pearled, pervade, pleader, plovery, predeal, preload, raveled, redpole, relayed, repaved, repayed, replead, vapored, yodeler