The word dethronements 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: 21
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (85 words)
dehorns, dehorts, dements, demesne, demotes, denotes, detente, detents, detorts, dotters, emender, emersed, emoters, endmost, endnote, endorse, entente, entered, entrees, estrone, ethenes, heteros, homered, hornets, meeters, menders, mentors, meronts, meteors, metered, methods, moderns, monster, mordent, mothers, needers, netters, redeems, reested, rehomed, rehomes, rehoned, rehones, remeets, remends, remotes, rennets, reshoed, rodents, rosette, seethed, seether, sheered, sheeted, sheeter, shorted, shorten, shotted, smother, sneered, snorted, snotted, snotter, steered, stented, sterned, stormed, teemers, teeters, teethed, teether, teethes, tenders, tendons, tenners, tenters, tethers, theorem, thereon, thereto, thermos, thorned, throned, thrones, torment