The word changeability 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
Seven Letter Word Alert: (69 words)
abating, abeyant, ability, actable, acylate, agatine, agility, albinic, albitic, alethic, alginic, alicant, analyte, angelic, bailing, baiting, balance, bathing, beating, belting, benight, benthal, benthic, biathla, blighty, cabinet, cabling, ceiling, chantey, chitlin, ciliate, citable, cyanate, cyanite, cyathia, elating, enlight, etching, ethical, gelatin, genital, glitchy, glycine, hailing, halting, healing, heating, hyaline, hyalite, ichnite, inhabit, intagli, itching, labiate, lacinia, latency, lathing, leching, lengthy, lighten, lignite, nightie, nightly, tabling, tagline, tailing, tenably, yachtie, yealing