The word intersperses 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™ Plays In The Letters intersperses
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Seven Letter Word Alert: (70 words)
eeriest, enterer, entrees, entries, inepter, inerter, inserts, insteps, nesters, penises, persist, pesters, preener, present, presets, presser, presses, preteen, priests, printer, pterins, reenter, reinter, renests, renters, repents, repiner, repines, repress, reprint, reprise, rerents, rerinse, resents, resists, respins, respire, respite, resteps, resters, restirs, retiree, retires, retrees, retries, rinsers, seepier, seitens, serener, serpent, sestine, sinters, sisters, sneerer, snipers, spinets, spriest, sprints, sprites, steepen, steeper, steerer, sterner, striper, stripes, teenier, terpene, terpine, tresses, trienes