The word fraternities 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: 16
Highest Scoring Words With Friends™ Plays In The Letters fraternities
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Seven Letter Word Alert: (106 words)
aeriest, airiest, antsier, arenite, artiest, artsier, attirer, attires, earners, earnest, eastern, entreat, entries, errants, faeries, fainter, fairest, fairies, fattens, fattier, fatties, ferrets, ferries, ferrite, fetters, fierier, fireant, fitters, fraters, freesia, fretter, fritter, inerter, inertia, instate, iratest, irisate, iterate, nastier, natters, nattier, nearest, neatest, netters, niftier, nitrate, nitrite, nittier, rafters, rainier, ranters, ratters, rattier, rearise, refiner, refines, refires, refrain, refrets, refries, reifier, reifies, reinter, renters, rerents, rerinse, restain, restart, restate, retains, retaste, retears, retinas, retints, retires, retrain, retreat, retries, seriate, serrate, snifter, stainer, starter, sterane, sterner, straint, striate, tarries, tastier, tearers, tearier, tenters, tentier, ternate, terrain, terrane, testier, tiniest, tinters, tintier, trainee, trainer, transit, treater, triaene, trienes