The word miscreates 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 miscreates
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Seven Letter Word Alert: (53 words)
actress, aeriest, amerces, ascites, casters, cerates, cerises, creases, creates, cremate, cresset, cristae, easiest, emetics, emirate, icemass, masters, meatier, mercies, messier, metrics, metrise, miscast, misseat, misters, racemes, raciest, racisms, racists, recasts, recites, reemits, remates, reseats, resects, restems, reteams, retimes, satires, screams, seamers, seamier, seaters, secrets, seriate, seriema, siamese, smartie, smiters, steamer, streams, teasers, tsarism