The word redeposit 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™ Play In The Letters redeposit
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Seven Letter Word Alert: (36 words)
deports, deposer, deposit, despite, diester, dieters, diopter, dioptre, dopiest, editors, epidote, episode, erotise, peridot, periods, poetise, posited, preedit, preside, reedits, reposed, respite, roisted, ropiest, sortied, spirted, sported, steroid, storied, striped, tepider, tierods, topside, torpids, tripeds, tripods