The word denouncements 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™ Play In The Letters
Seven Letter Word Alert: (38 words)
cements, cenotes, cestode, condemn, consent, consume, contend, costume, counted, cumenes, decenes, dements, demesne, demotes, demount, denotes, descent, detunes, dustmen, encodes, endmost, endnote, eudemon, mounted, muscone, noncute, nonenes, nonmute, nutseed, octenes, scented, scouted, snouted, stunned, tendons, tumesce, undents, unnoted