The word overgeneralize 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: 31
Highest Scoring Words With Friends™ Play In The Letters overgeneralize
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Seven Letter Word Alert: (62 words)
aerogel, agonize, aileron, aligner, angrier, avenger, eagerer, earlier, earring, elegize, engrave, enlarge, enolize, general, glazier, gleaner, gnarler, grainer, greener, griever, groaner, ironage, learing, learner, leaving, leerier, leering, lineage, lozenge, nervier, oranger, overage, overlie, overran, rangier, realign, realize, rearing, reaving, reeling, reeving, reglaze, regraze, regreen, reigner, relearn, relieve, reneger, renerve, reveler, revenge, reverie, reviler, roaring, vearing, veering, veliger, veneral, vinegar, zeroing, zingare, zingaro