The word monothelitisms 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: 24
Highest Scoring Words With Friends™ Play In The Letters monothelitisms
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Seven Letter Word Alert: (83 words)
elision, elitism, elitist, emotion, enlists, histone, holiest, homiest, hostels, hostile, hotline, hotness, inosite, insoles, iolites, ionises, isohels, lesions, lioness, lionets, lionise, lionism, listens, loonies, loosens, loosest, lotions, meiosis, menthol, mimesis, missile, mission, mistime, mitiest, mitoses, mitosis, mittens, moisten, molests, moments, moonlit, motions, mottles, mottoes, noisome, nosiest, notists, oiliest, oleosin, oolites, ooliths, osteons, otolite, otolith, shmoose, silents, similes, smitten, smooths, soloist, somites, somonis, soonest, soothes, stetson, stimies, stomies, stonish, stoolie, theisms, theists, thiones, thistle, tiniest, tinsels, toilets, tomtoms, tonsils, toolmen, toolset, toonies, tootles, tootsie