The word triskelions 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 triskelions
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Seven Letter Word Alert: (70 words)
elision, enlists, estriol, inkiest, inkless, inosite, inserts, insoles, iolites, ioniser, ionises, ironies, ketosis, kilters, kinesis, kinless, kirtles, lesions, linkers, lintier, lioness, lionets, lionise, listens, loiters, lossier, noisier, norites, nosiest, nostril, oikists, oiliest, oilskin, orients, ostlers, reknits, reknots, relinks, relists, resoils, retinol, rosiest, seniors, silents, silkens, silkier, siltier, sinkers, sinlike, sinters, sirloin, snorkel, sonlike, sorties, sterols, stinker, stokers, stoners, stonier, stories, strikes, strokes, tensors, tinkers, tinkler, tinkles, tinsels, toilers, tonsils, triones