The word copperheads 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: 23
Highest Scoring Words With Friends™ Play In The Letters copperheads
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Seven Letter Word Alert: (70 words)
acerose, adheres, apposed, apposer, capered, carhops, chapped, cheaped, cheaper, cheapos, chopped, chopper, cohered, coheres, coppers, crapped, crashed, creased, cropped, dappers, decares, deposer, echoers, eparchs, escaped, escaper, headers, heapers, hearsed, hoppers, papered, parched, parches, peaches, peapods, perched, perches, perhaps, phrased, poached, poacher, poaches, porched, porches, precode, proceed, reached, reaches, rechose, recodes, reheaps, repaced, repaces, reposed, rescope, reshape, reshoed, respace, respade, roached, roaches, sarcode, scarped, scraped, sharped, sheared, shopped, shopper, speared, sphered