The word devaluating 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: 21
Highest Scoring Words With Friends™ Plays In The Letters devaluating
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Seven Letter Word Alert: (49 words)
adulate, agatine, aligned, anviled, availed, aviated, avigate, dealign, dealing, deaving, delving, deviant, diluent, divulge, dueling, elating, eluding, eluting, evading, gaunted, gelatin, genital, glinted, guilted, indulge, languid, lauding, lavaged, leading, leaving, ligated, lunated, tagline, tailgun, tangled, tingled, unagile, undealt, unideal, untiled, vaginal, valiant, valuate, valuing, vantage, vaulted, vaunted, vedanta, vintage