The word decentralized 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: 29
Highest Scoring Words With Friends™ Plays In The Letters decentralized
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Seven Letter Word Alert: (95 words)
alerted, altered, arenite, article, cairned, candied, candled, candler, cantred, catered, central, centred, certain, citadel, cleaned, cleaner, cleared, cradled, created, dandier, dandler, deaired, decalin, decider, declare, decline, decreed, decrial, decried, deerlet, delated, deleted, deleter, deltaic, detrain, detrend, dialect, diazene, dilated, dilater, drained, elected, enacted, enteral, entered, enteric, enticed, enticer, erected, eternal, latrine, learned, lectern, lenited, lineate, needier, needled, needler, radicel, radicle, ratline, reacted, readied, realize, recaned, receded, recital, recited, reclean, recline, redated, redealt, redline, reelect, reenact, relaced, related, reliant, relined, retiled, retinal, teenier, tendril, tradein, trailed, trained, trainee, tranced, treacle, treaded, treadle, trenail, trended, triaene, zincate