The word stoolpigeons 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: 19
Highest Scoring Words With Friends™ Play In The Letters stoolpigeons
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Seven Letter Word Alert: (85 words)
egoists, elogist, eloigns, eloping, enlists, epilogs, epsilon, glioses, glisten, gooiest, goosies, gospels, ingests, insoles, insteps, isogons, isotope, legions, leptons, lesions, lingoes, lioness, lionets, listens, longest, loonies, looping, loosens, loosest, loosing, looting, losings, lotions, nosiest, oleosin, oolites, oolongs, options, osteons, pelting, pigeons, piglets, pingles, pingoes, pinless, pistols, pistons, pitless, pleions, plosion, poisons, pooling, postils, posting, potions, signets, silents, singles, singlet, sloping, soloing, soloist, soonest, sooting, spigots, spinels, spinets, spinose, splines, splints, sponges, stepson, stogies, stooges, stoolie, tingles, tinsels, tipless, tonsils, tooling, toonies, topless, topline, topsoil, tossing