The word stockholders 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 stockholders
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Seven Letter Word Alert: (85 words)
chokers, chooser, chooses, chortle, closers, closest, closets, clothed, clothes, cohorts, coldest, colters, cookers, coolers, coolest, corsets, creosol, cresols, croodle, crooked, crossed, decolor, dehorts, destock, dockers, dockets, doctors, dotless, escorts, holders, holster, hookers, hooklet, hostels, hostler, hotrods, koshers, lockers, lockets, lockset, lookers, loosest, looters, ocelots, ostlers, recooks, redocks, rehooks, relocks, relooks, reshook, reshoot, restock, retools, rockets, rodless, roosted, schools, schorls, scolder, scooted, scooter, sectors, shlocks, shocked, shocker, shooter, shorted, sloshed, sockets, solders, soothed, soother, soothes, sterols, stocked, stocker, stokers, stooled, stroked, strokes, toehold, toolers, torched, torches