The word bookdealers 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: 20
Highest Scoring Words With Friends™ Play In The Letters bookdealers
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Seven Letter Word Alert: (40 words)
aerosol, albedos, areoles, balkers, beakers, bedares, bedlars, bedsore, bleaker, boleros, boodles, bookers, dealers, debarks, debaser, debeaks, earlobe, elodeas, labored, lakebed, leaders, leakers, loaders, lookers, ordeals, reasked, rebaked, rebakes, rebaled, rebales, rebased, rebooks, redeals, reloads, relooks, resoled, roseola, sabered, skelder, sobered