The word storytellers 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™ Play In The Letters storytellers
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Seven Letter Word Alert: (48 words)
letters, lottery, osselet, ostlers, oysters, rerolls, resells, resoles, resorts, resters, restore, restyle, retells, retests, retorts, rollers, roselet, rosette, rosters, rotters, sellers, setters, settler, settles, sorrels, sorters, stereos, sterols, storeys, streets, strolls, stylers, stylets, systole, teleost, tellers, tersely, tersest, testers, toeless, tollers, toyless, trestle, trolley, tryster, tyloses, tylotes, yellers