The word priesthoods 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: 17
Highest Scoring Words With Friends™ Play In The Letters priesthoods
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Seven Letter Word Alert: (71 words)
dehorts, deports, deposit, despots, diopter, dioptre, dispose, disroot, dithers, dopiest, dossier, editors, hoisted, hosiers, hotrods, isopods, isotope, optrode, osteoid, peridot, periods, persist, photoed, poorest, poroses, porosis, posited, posters, pothers, priests, reposts, reships, reshoot, respots, roisted, roosted, ropiest, rosehip, rosiest, shirted, shooter, shorted, soothed, soother, soothes, sootier, sortied, sorties, spiders, spirted, spoored, sported, spriest, sprites, steroid, stooped, stooper, storied, stories, strides, striped, stripes, strophe, tierods, topside, toroids, torpedo, torpids, tripeds, tripods, trooped