The word stockholder 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 stockholder
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Seven Letter Word Alert: (60 words)
chokers, chooser, chortle, clothed, clothes, cohorts, coldest, colters, cookers, coolers, coolest, creosol, croodle, crooked, decolor, dehorts, destock, dockers, dockets, doctors, holders, holster, hookers, hooklet, hostler, hotrods, lockers, lockets, lockset, lookers, looters, ocelots, recooks, redocks, rehooks, relocks, relooks, reshook, reshoot, restock, retools, rockets, roosted, scolder, scooted, scooter, shocked, shocker, shooter, shorted, soothed, soother, stocked, stocker, stooled, stroked, toehold, toolers, torched, torches