The word rigidifications 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: 25
Highest Scoring Words With Friends™ Play In The Letters rigidifications
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Seven Letter Word Alert: (89 words)
actions, adoring, agnosic, agonist, airings, angioid, arising, astroid, atonics, candors, cantors, carding, carotid, carting, cartons, casting, cations, citrons, coating, codings, confits, conidia, corands, cording, costing, crating, cratons, crinoid, darting, diarist, diction, discant, dogcart, donairs, dragons, drastic, facings, faction, factors, fairing, fasting, fiction, firings, forcing, forints, frantic, gastric, gastrin, gnostic, iconist, idiotic, ignitor, incisor, indicts, indigos, indraft, infarct, ingraft, inroads, insofar, nicosia, nordics, orating, ordains, organic, origins, rafting, raiding, raising, ratings, rations, ridings, rifting, rioting, satiric, scaring, scoring, sifting, signora, soaring, soricid, sorting, staring, storing, tidings, tracing, trading, triadic, trifids