The word wainscotting 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: 22
Highest Scoring Words With Friends™ Play In The Letters wainscotting
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Seven Letter Word Alert: (47 words)
actions, agnosic, agonist, anionic, anoints, atonics, atoning, awnings, canting, cantons, casting, cations, catting, coating, coining, consign, contain, costing, cotwist, gnostic, iconist, incants, instant, intwist, nations, niacins, nicosia, nitwits, octants, sitting, snowing, stannic, stating, station, stoning, stowing, tasting, tinting, titanic, twining, waiting, wanting, wantons, wasting, wincing, witting, wonting