The word capsulates 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: 18
Highest Scoring Words With Friends™ Plays In The Letters capsulates
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Seven Letter Word Alert: (34 words)
actuals, acuates, alecups, aspects, assault, atlases, capless, caplets, capsule, castles, casuals, catsups, clauses, cupless, cuspate, lactase, palaces, palates, pascals, pastels, placate, plateau, pulsate, salutes, scapula, sculpts, spatula, specula, staples, sulcate, suspect, taluses, teacups, upscale