The word denigration 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™ Play In The Letters denigration
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Seven Letter Word Alert: (71 words)
adoring, andiron, aneroid, angioid, antigen, atoning, darning, darting, denarii, denting, deraign, detrain, dieting, dingier, dinting, diorite, dragnet, droning, earning, editing, edition, entrain, eroding, gentian, godetia, grained, granite, granted, grinned, groaned, groined, ignited, igniter, ignitor, ignored, inditer, inertia, ingrain, ingrate, intoned, intoner, ironage, ironing, nearing, negroid, nitride, nondate, nondiet, orating, otarine, raiding, raining, ranting, reading, redoing, regnant, reining, rending, renting, rioting, roaning, tangier, tangoed, tearing, tending, tiering, tinnier, tonnage, tradein, trading, trained