The word reduplicate 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 reduplicate
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Seven Letter Word Alert: (99 words)
adepter, alerted, altered, article, auditee, auricle, caliper, capered, capture, catered, citadel, cleared, clipart, created, culprit, cuprite, curated, curtail, declare, decrial, decuple, deepcut, deltaic, dialect, dilater, diluter, ductile, educate, eluated, epaulet, epicure, epurate, eructed, erudite, erupted, lecture, leucite, lipread, pearled, peatier, pedicel, pedicle, periled, perlite, petaled, picrate, picture, pierced, pirated, plaited, plaudit, pleader, pleated, pleurae, plicate, predate, predeal, predial, predict, preedit, prelate, prelect, prelude, puerile, radicel, radicle, reacted, reaudit, receipt, recital, recited, redealt, redtape, relaced, related, repaced, repiled, replace, replait, replate, replead, repleat, replica, replied, reptile, reputed, retaped, retiled, tapered, tepider, traduce, trailed, treacle, treadle, tripled, ulcered, updater, uprated, uralite