The word permeableness 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: 24
Highest Scoring Words With Friends™ Plays In The Letters permeableness
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Seven Letter Word Alert: (65 words)
alpeens, amblers, amperes, armless, asperse, baleens, basemen, beepers, beseems, besmear, blamers, bleeper, blesser, braless, earless, elapses, embases, emerses, empanel, emplane, empress, enabler, enables, enamels, enseals, ensears, leaners, leapers, leasers, manless, mapless, marbles, measles, napless, peelers, planers, pleaser, pleases, presale, rambles, rebales, rebases, reblame, rebless, relapse, release, renames, repanel, repeals, repeels, replane, replans, resales, reseals, resnaps, respans, sampler, samples, sealers, seamers, seeable, serapes, sleeper, spelean, spleens