The word disobedience 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: 21
Highest Scoring Words With Friends™ Play In The Letters disobedience
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Seven Letter Word Alert: (31 words)
bedside, biddies, binodes, biocide, bodices, codeine, deboned, debones, decenes, decides, decodes, deicide, denoise, descend, diocese, discoid, disodic, ebonics, ebonies, encoded, encodes, eosinic, incised, indices, iodides, iodines, iodised, ionised, obscene, seceded, seedbed