The word reverentially 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™ Plays In The Letters
Seven Letter Word Alert: (69 words)
alerter, alertly, arenite, averter, earlier, elative, elevate, enteral, enterer, eternal, eviller, inerter, inertly, inlayer, irately, latrine, learner, leerier, leveler, lineate, literal, naively, naivety, nervier, ratline, reality, realter, reenter, reentry, reinter, relater, relayer, relearn, relevel, reliant, relieve, renerve, retally, retinal, retiree, retrain, retrial, reveler, revelry, reverie, reviler, rivalry, riveter, tallier, tearier, tearily, teenier, ternary, terrain, terrane, trailer, trainee, trainer, trenail, triaene, variety, veinlet, veneral, ventral, veteran, vinelet, virally, vitally, yearner