The word intercedes 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: 15
Highest Scoring Words With Friends™ Play In The Letters intercedes
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Seven Letter Word Alert: (50 words)
centers, centred, centres, cinders, cistern, credits, crested, cretins, deceits, decenes, decrees, decries, deicers, deniers, descent, destine, diester, dieters, directs, discern, eeriest, entered, enteric, enticed, enticer, entices, entrees, entries, erected, needers, needier, recedes, recited, recites, reedits, reested, rescind, scented, scenter, seceder, secrete, seedier, sincere, sneered, steered, sterned, teenier, tenders, tinders, trienes