The word prologuizes 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: 27
Highest Scoring Words With Friends™ Play In The Letters prologuizes
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Seven Letter Word Alert: (20 words)
epilogs, glories, goopier, goosier, goozles, groupie, gulpers, leprous, loopier, lousier, orioles, prologs, regosol, replugs, respool, soupier, splurge, spoiler, spooler, sporule