The word revisionist 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: 16
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (37 words)
inosite, inserts, inverts, invests, inviter, invites, invitro, ioniser, ionises, ironies, ivories, ivorist, noisier, norites, nosiest, orients, oversit, revisit, rosiest, seniors, sinters, sorties, stivers, stivier, stoners, stonier, stories, striven, strives, tensors, triones, verists, version, virions, visions, visitor, vitrine