The word disarranges 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: 15
Highest Scoring Words With Friends™ Play In The Letters disarranges
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Seven Letter Word Alert: (54 words)
agendas, angrier, arraign, arrange, dangers, darners, deraign, designs, digress, drainer, earring, erasing, errands, gainers, ganders, gardens, garners, gassier, girders, girners, gnarred, graders, grained, grainer, grander, grassed, grinder, ingress, radians, raiders, raisers, randier, rangers, rangier, reading, rearing, redrags, regains, regards, regrind, resands, resigns, ringers, rinsers, sanders, sandier, sangria, sardine, searing, sierras, signers, singers, snarers, sringas