The word transiently 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: 16
Highest Scoring Words With Friends™ Plays In The Letters transiently
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Seven Letter Word Alert: (88 words)
antlers, antsier, artiest, attires, elastin, ensnarl, entails, entrain, entrant, inanely, inertly, inlayer, insaner, instant, instate, instyle, intents, interns, irately, iratest, lantern, latents, latites, latrine, linnets, litters, nailers, nailset, nastier, nastily, natters, nattier, nattily, nitrate, nitryls, ratline, rattles, realist, reality, reliant, renails, rentals, reslant, restain, retails, retains, retilts, retinal, retinas, retints, saintly, salient, saltern, saltier, satiety, slatier, slitter, stainer, starlet, starlit, startle, stately, sternal, sternly, stilter, straint, striate, stylate, stylier, talents, tanners, tannery, tannest, tastier, tastily, tearily, tenants, tertial, testily, tilters, tinners, tinters, transit, trenail, triynes, trysail, tyrants, yttrias