The word syncretised 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: 18
Highest Scoring Words With Friends™ Play In The Letters syncretised
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Seven Letter Word Alert: (78 words)
censers, centers, centred, centres, cerises, cinders, cistern, credits, cresset, crested, cretins, cystine, deceits, decries, decynes, deicers, deniers, densest, density, descent, deserts, desires, dessert, destine, destiny, diester, dieters, directs, discern, dissect, dissent, dryness, encysts, enteric, enticed, enticer, entices, entries, incests, insects, inserts, nesters, recited, recites, redness, reedits, renests, rescind, resects, resends, resents, resides, scenery, scented, scenter, screeds, screens, screeny, secerns, secrets, seitens, senders, sestine, sincere, sinters, snidest, sterned, strides, styrene, syenite, syndics, tenders, tinders, tindery, tressed, trienes, triynes, yestern