The word prioritised 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: 15
Highest Scoring Words With Friends™ Plays In The Letters prioritised
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Seven Letter Word Alert: (44 words)
deports, deposit, diopter, dioptre, diorite, dirtier, dirties, ditsier, dopiest, editors, iodiser, iodites, iridise, peridot, periods, pitiers, porters, posited, presort, reports, rioters, riptide, roisted, roister, ropiest, sortied, spiroid, spirted, sported, steroid, stirred, storied, strider, stridor, striped, striper, tiderip, tidiers, tierods, tipsier, topside, torpids, tripeds, tripods