The word porterages 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: 15
Highest Scoring Words With Friends™ Plays In The Letters
Seven Letter Word Alert: (53 words)
apogees, garrets, garters, gearset, goatees, grasper, graters, greaser, greater, gropers, operate, pargets, parrots, portage, porters, postage, potages, praetor, praters, presage, presort, prorate, protege, raptors, reapers, rearose, regears, regrasp, regrate, regrets, repages, reparse, repaste, repeats, reports, reposer, rerapes, reroast, restage, restore, restrap, retapes, retears, retraps, roaster, roseate, seagoer, seaport, serrate, spearer, storage, taperer, tearers