The word predestines 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: 16
Highest Scoring Words With Friends™ Play In The Letters predestines
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Seven Letter Word Alert: (91 words)
deepens, deepest, deniers, densest, depress, deserts, desires, despise, despite, dessert, destine, diester, dieters, dissent, eeriest, entered, entrees, entries, inepter, inserts, insteps, needers, needier, nesters, penises, persist, pesters, petered, preedit, preened, present, presets, preside, pressed, preteen, pretend, priests, printed, pterins, redness, reedits, reested, renests, repents, repined, repines, reseeds, resends, resents, resides, respins, respite, resteps, ripened, seeders, seedier, seepier, seitens, senders, serpent, sestine, sinters, sneered, snidest, snipers, speeder, spender, spiders, spinets, spirted, spriest, sprints, sprites, steeped, steepen, steeper, steered, sterned, stipend, strides, striped, stripes, teenier, tenders, tepider, terpene, terpine, tinders, tressed, trienes, tripeds