The word peptisations 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: 19
Highest Scoring Words With Friends™ Plays In The Letters peptisations
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Seven Letter Word Alert: (47 words)
appoint, apposes, aptness, inosite, instate, insteps, ionises, isospin, nappies, nosiest, notists, opiates, pansies, panties, passion, pasties, patents, patient, patines, patties, pepsins, petnaps, pianist, pietist, pinesap, pisspot, pistons, potpies, potties, seitans, sestina, snippet, spinets, spinose, statins, station, stepson, stetson, stipite, taoists, teapots, tiepins, tiniest, tinpots, tiptoes, tiptops, topspin