The word potentiations 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: 18
Highest Scoring Words With Friends™ Play In The Letters potentiations
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Seven Letter Word Alert: (46 words)
anoints, asinine, inosine, inosite, instant, instate, intents, intones, ionones, isotope, nations, nonstop, notions, opiates, opinion, options, panties, patents, patient, patines, patties, pension, pianist, pietist, pinions, pinnate, pontine, potions, pottant, potties, saponin, spinnet, station, stipite, tannest, tattoos, teapots, tenants, tenpins, tension, tiepins, tiniest, tinpots, tiptoes, toonies, tootsie