The word refrigerators 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 refrigerators
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Seven Letter Word Alert: (72 words)
aeriest, aigrets, artsier, erotise, etaerio, faeries, fairest, ferrari, ferrets, ferries, ferrite, foister, forager, forages, forgers, forgets, forties, fraters, freesia, frigate, froster, gaiters, garrets, garters, gearset, goatees, goiters, goitres, goriest, grafter, graters, greaser, greater, grister, rafters, rearise, rearose, refires, reforge, refrets, refries, regears, regraft, regrate, regrets, reroast, restage, restore, retears, retirer, retires, retries, rioters, roarers, roaster, roister, roseate, seagoer, seriate, serrate, sorrier, stagier, stirrer, storage, tarrier, tarries, tearers, tearier, terrier, terroir, terrors, triages