The word panegyrics 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™ Plays In The Letters panegyrics
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Seven Letter Word Alert: (39 words)
arcsine, arsenic, carnies, carping, ceasing, cringes, crispen, cryings, cyanise, engrasp, erasing, gainers, gaspier, icespar, inscape, parings, parsing, pincers, pingers, prances, praying, presync, preying, princes, pryings, rasping, reaping, regains, scaring, scrying, searing, spacier, spacing, sparing, spaying, spicery, springy, syringa, syringe