The word sheepshearing 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 sheepshearing
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Seven Letter Word Alert: (98 words)
arsheen, arshine, arshins, asperse, aspires, engrasp, enrages, ensears, epigene, erasing, gainers, garnish, gashers, gaspers, gaspier, gassier, geishas, geneses, genesis, gnasher, gnashes, greases, greisen, hagship, hangers, harness, harpies, harping, hashing, heapers, heaping, hearing, hearses, heiress, heparin, hernias, hipness, ingress, pansies, paresis, parings, parsing, passing, peerage, peering, penises, perigee, phasing, pheeses, phisher, phrases, pingers, praises, presage, rasping, raspish, reaping, regains, rehangs, reheaps, rehinge, reneges, repages, repines, reshape, reshine, reships, resigns, resnaps, respans, respins, sashing, searing, seepage, seepier, seeping, serapes, seraphs, shapers, shaping, sharing, sharpen, sharpie, sherpas, shiners, shrines, sighers, signees, signers, singers, snipers, sparing, sphenes, spheres, spireas, sprains, springs, sringas