The word stereophony 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: 19
Highest Scoring Words With Friends™ Play In The Letters stereophony
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Seven Letter Word Alert: (53 words)
entropy, eophyte, estrone, ethynes, eyeshot, eyespot, heptose, heptyne, heteros, honesty, honoree, hornets, neotype, onestep, onshore, oophyte, openers, openest, operons, pentose, phoneys, photons, phrensy, poorest, postern, poteens, potheen, pothers, prenote, present, pronest, protons, pyrones, pythons, rehones, reopens, repents, reshoot, retypes, serpent, shooter, shorten, snooper, soother, sporont, stooper, strophe, styrene, thereon, thrones, toyshop, typhoon, yestern