The word decampments 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: 25
Highest Scoring Words With Friends™ Play In The Letters decampments
:
Seven Letter Word Alert: (32 words)
cements, dampens, dampest, decamps, decanes, decants, demates, demeans, dements, descant, descent, enacted, encamps, encased, escaped, meanest, menaced, menaces, pacemen, pectens, pedants, pencase, scammed, scamped, scented, spammed, stamped, standee, steamed, stemmed, tandems, tapemen