The word defilements 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: 20
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (35 words)
defense, defiles, defines, deletes, delimes, delints, dements, demesne, dentils, deslime, destine, element, enemies, felines, felsite, fileted, filmset, fleeted, flensed, lefties, leftism, lenited, lenites, linseed, mildest, mindset, misfeed, needles, nestled, sleeted, smelted, steeled, steelie, stifled, tensile