The word decipherably 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: 27
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (81 words)
acridly, baldric, beached, beadier, bedclip, bedrail, belayed, belayer, belched, belcher, biarchy, bilayer, bipedal, birched, brailed, caliber, calibre, caliper, capered, carbide, chaired, charily, cheaped, cheaper, cheaply, cheerly, chirped, clayier, cleared, debacle, decayer, decibel, declare, decrial, delayer, diarchy, dyeable, edaphic, eparchy, hardily, harelip, hayride, headier, healder, helipad, layered, leached, leacher, lechery, lipread, parched, pearled, pedicel, pedicle, perched, periled, piebald, pierced, pleader, preachy, predeal, predial, prelacy, rabidly, radicel, radicle, rapidly, reached, readily, rebaled, relaced, relayed, repaced, repayed, repiled, replace, replead, replica, replied, ycleped, yielder