The word aggrandizes 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: 26
Highest Scoring Words With Friends™ Plays In The Letters aggrandizes
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Seven Letter Word Alert: (37 words)
agendas, aggrade, daggers, dangers, deraign, diazane, diggers, edgings, erasing, gainers, ganders, garaged, garages, gardens, gearing, gingers, grading, grained, grazing, naggers, radians, reading, regains, saggier, sandier, sangria, sardine, searing, serging, signage, snagged, snagger, zanders, zenaida, zingara, zingare, zingers