The word syncopating 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: 23
Highest Scoring Words With Friends™ Play In The Letters syncopating
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Seven Letter Word Alert: (41 words)
actions, agnosic, agonist, anoints, atonics, atoning, canting, cantons, canyons, caption, casting, cations, catnips, coating, consign, contain, copings, copsing, copying, copyist, costing, cyanins, gnostic, incants, nations, opacity, panting, pasting, posting, saponin, scoping, soaping, spacing, spaying, spongin, stannic, staying, stoning, stygian, syncing, tapings