The word biographers 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: 21
Highest Scoring Words With Friends™ Play In The Letters biographers
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Seven Letter Word Alert: (37 words)
aspirer, barhops, bearish, bigraph, biphase, boarish, borages, braiser, brasher, brasier, gaspier, gophers, grasper, gripers, gropers, harbors, harpers, harpies, hoagies, hoarier, hoarser, horsier, ogreish, phobias, phraser, praiser, probers, raspier, regrabs, regraph, regrasp, regrips, repairs, rosehip, sharper, sharpie, soapier