The word singlestick 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: 22
Highest Scoring Words With Friends™ Play In The Letters singlestick
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Seven Letter Word Alert: (47 words)
ceiling, clients, elicits, enlists, glisten, iciness, ignites, incests, incises, incites, ingests, inkiest, inkless, insects, kilting, kinesic, kinesis, kinetic, kinless, kissing, licking, lignite, likings, listens, listing, nickels, nickles, sickens, sickest, sicking, sickles, signets, silents, silkens, silting, singles, singlet, sinlike, slicing, stencil, stickle, ticking, tickles, tilings, tingles, tinkles, tinsels