The word campaigners 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: 23
Highest Scoring Words With Friends™ Play In The Letters campaigners
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Seven Letter Word Alert: (73 words)
agarics, airgaps, amnesia, amnesic, anaemic, arcsine, arsenic, cameras, campers, campier, camping, canapes, carinae, carmine, carnage, carnies, carping, ceasing, cinemas, cringes, crispen, encamps, engrasp, enigmas, epigram, erasing, gainers, gaspier, grimace, icemans, icespar, imagers, inscape, magpies, manager, manages, mangers, mangier, maniacs, margins, marinas, marines, mincers, mirages, mispage, paceman, parings, parsing, pemican, perming, pincers, pingers, prances, primase, princes, rampage, rasping, reaming, reaping, regains, remains, sangria, scamper, scaring, seaming, searing, seminar, sirname, spacier, spacing, sparing, spermic, spiraea