The word formalities 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: 18
Highest Scoring Words With Friends™ Play In The Letters formalities
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Seven Letter Word Alert: (81 words)
airfoil, airiest, airlift, airtime, armlets, atomise, elitism, estriol, fairest, fairies, falters, farmost, femoral, filiate, filmier, filmise, filmset, filters, firelit, firmest, flamers, floater, florets, florist, flotsam, foamers, foamier, foister, folates, foliate, formals, formats, forties, iolites, irisate, isolate, leftism, lifters, limiter, loafers, loamier, loftier, loiters, maestro, mailers, maltier, maltose, marlite, militar, misfile, misfire, mistier, mistral, moister, morales, mortals, mortise, motlier, oilfire, oiliest, realism, realist, refilms, refloat, remails, retails, saltier, siltier, similar, siriema, slatier, slimier, smartie, smilier, stifler, stromal, tailors, toilers, tramels, trefoil, trifles