The word prolongations 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: 21
Highest Scoring Words With Friends™ Plays In The Letters prolongations
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Seven Letter Word Alert: (92 words)
agonist, anglist, anoints, antlion, apologs, atoning, galoots, galtrop, gastrin, introns, lagoons, lapsing, lasting, loaning, looping, loosing, looting, lotions, nations, nonarts, nongoal, nonliar, nonpros, nonriot, nonslip, nonstop, noosing, nostril, notions, oogonia, oolongs, ooplast, options, orating, oration, panting, parings, parsing, parting, pasting, patrols, patrons, planing, plating, platoon, plosion, polaron, pontoon, pooling, portals, porting, portion, posting, potions, prating, prologs, prolong, protons, ranting, rasping, ratings, rations, roaning, rooting, salting, sapling, saponin, signora, slating, sloping, snaring, snoring, soaping, soaring, soloing, sooting, soprano, sorting, sparing, spongin, sporing, sporont, staring, stoning, storing, tailors, tapings, tooling, toprail, topsail, topsoil, torsion