The word uncompresses 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: 23
Highest Scoring Words With Friends™ Plays In The Letters uncompresses
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Seven Letter Word Alert: (53 words)
censers, censors, censure, cerumen, compere, consume, corpses, courses, cresses, crosses, cumenes, cuprene, cussers, empress, encores, ensures, espouse, mousers, mousses, muscone, necrose, openers, percuss, persons, peruses, poseurs, possums, pouncer, pounces, presses, presume, process, recoups, recuses, reopens, reposes, rescope, rescues, resumes, ropemen, ruesome, screens, secerns, secures, sensors, sermons, sources, spouses, spruces, sucrose, supreme, uncross, urnmoss