The word decipherers 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 decipherers
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Seven Letter Word Alert: (53 words)
cheeped, cheered, cheerer, cheesed, chirped, chirper, ciphers, creeped, creeper, crisped, crisper, decreer, decrees, decrier, decries, deepish, dehisce, deicers, derries, desirer, herders, perched, percher, perches, pheesed, pierced, piercer, pierces, precede, precise, preside, pricers, recedes, recipes, redries, reedier, rehides, rehired, rehires, reperch, reprice, reprise, resider, respice, respire, seceder, seedier, seepier, sheered, sheerer, speeder, sphered, spheric