The word indigestions 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 indigestions
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Seven Letter Word Alert: (51 words)
denting, dentins, designs, dieting, digests, dingies, dinting, dissent, dissing, dogsits, editing, edition, egoists, endings, ensigns, godsent, ignited, ignites, indents, indigos, indites, ingests, inosine, inosite, insides, intends, intoned, intones, iodines, iodises, iodites, ionised, ionises, nesting, nondiet, nosiest, sending, sensing, sidings, signets, sinoids, snidest, sonnets, stogies, stoning, tending, tendons, tensing, tension, tidings, tossing