The word stockpilings 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: 26
Highest Scoring Words With Friends™ Play In The Letters stockpilings
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Seven Letter Word Alert: (61 words)
closing, coiling, colitis, consist, copings, copsing, cosigns, costing, gliosis, gnostic, iconist, inkpots, inkspot, inlocks, isospin, kilting, kissing, licking, likings, lisping, listing, locking, lockpin, losings, nitpick, oikists, oilskin, oligist, picking, pigskin, pilings, pinitol, pistils, pistols, pistons, poising, politic, postils, posting, psionic, scoping, sicking, silicon, silting, slicing, sloping, socking, soiling, solicit, spicing, spigots, spiking, spiting, splints, stoking, ticking, tilings, tocsins, toiling, tonsils, tossing