The word aerogenerators 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: 17
Highest Scoring Words With Friends™ Play In The Letters aerogenerators
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Seven Letter Word Alert: (88 words)
aerates, aerator, agarose, argents, arrange, arrears, atoners, eagerer, earners, earnest, eartags, eastern, enrages, enterer, entrees, errants, estrone, garners, garnets, garrets, garters, gearset, goatees, grantee, granter, graters, greaser, greaten, greater, greener, greeter, groaner, narrate, nearest, negates, negroes, onstage, oranger, oranges, orators, oregano, ornater, orogens, rangers, ranters, reagent, rearose, reenter, regears, regents, regrant, regrate, regreen, regreet, regrets, reneger, reneges, renters, rerents, reroast, reroots, restage, restore, retears, retrees, roarers, roaster, rooster, rooters, roseate, seagoer, senator, serener, serrate, sneerer, snorter, steerer, sterane, sterner, storage, strange, tanager, tearers, teargas, teenage, terrane, terrors, treason