The word depressurizes 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: 27
Highest Scoring Words With Friends™ Play In The Letters depressurizes
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Seven Letter Word Alert: (50 words)
depress, derries, desirer, desires, despise, dresser, dresses, dressup, issuers, perused, peruses, preside, pressed, presser, presses, pursers, pussier, pussies, redress, redries, reedier, reissue, repress, reprise, reprize, reseeds, reseize, resider, resides, residue, resized, resizes, respire, seeders, seedier, seepier, seizers, seizure, speeder, spiders, spurred, sudsers, sudsier, supered, suspire, upriser, uprises, upsides, upsized, upsizes