The word microbreweries 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 microbreweries
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Seven Letter Word Alert: (33 words)
becomes, bemires, berries, brewers, bromise, browser, combers, crosier, embower, imbower, isomere, meowers, mercers, mercies, merrier, microbe, mirrors, miswire, rebores, recombs, recower, remorse, rescore, reswore, rewires, screwer, scriber, soberer, sorrier, wormers, wormier, worrier, worries