The word centralizing 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: 29
Highest Scoring Words With Friends™ Play In The Letters centralizing
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Seven Letter Word Alert: (83 words)
airline, alginic, aligner, ancient, angelic, aniline, antigen, article, cannier, canting, carting, catenin, ceiling, central, certain, ciliate, citizen, citrine, clinger, craning, crating, crazing, earning, elating, entrain, gelatin, genital, gentian, glacier, glancer, glazier, gracile, granite, igniter, inciter, incline, inertia, ingrain, ingrate, intagli, laicize, lairing, lancing, lantern, latrine, leaning, learing, lignite, lintier, nailing, nearing, railing, raining, ranting, ratline, realign, recital, reclang, regnant, reicing, reining, reliant, renting, retinal, ringlet, tagline, tailing, tangier, tearing, teazing, tiering, tingler, tinnier, tracing, trenail, zincate, zincier, zincing, zincite, zingani, zingare, zingari, zingier