The word propagandist 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: 22
Highest Scoring Words With Friends™ Play In The Letters propagandist
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Seven Letter Word Alert: (72 words)
adaptor, adoring, against, agatoid, agitpop, agnosia, agonist, airgaps, anapsid, appoint, artisan, astroid, atonias, atropia, dapping, darting, dognaps, donairs, dopants, dragons, draping, gastrin, grandpa, inroads, orating, ordains, pagodas, paragon, pardons, parings, parotid, parsing, parsnip, parting, pasting, patinas, patrons, porting, posting, prating, radians, radiant, rapping, rasping, ratings, rations, ripstop, sandpit, sangria, sapping, signora, soaping, soaring, sopaipa, sopping, sorting, spading, sparing, spartan, sporing, staring, stopgap, storing, tapings, tapping, tarpans, topping, topspin, torpids, trading, tripods, tsarina