The word autobiographical cannot be made in Words With Friends™. It is 16 letters long, too long to fit on a WordsWithFriends board (15 letters max).
Highest Scoring Words With Friends™ Play In The Letters autobiographical
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Seven Letter Word Alert: (91 words)
abiotic, ablator, aboulia, aboulic, achiral, acholia, acrobat, airboat, aircool, albitic, alright, aphagia, aplitic, apogaic, apricot, atropia, autarch, autocar, bailout, bathcap, biathla, bicolor, bigraph, biochip, biolith, bipolar, borough, brachia, brought, cabalah, caltrap, caltrop, capital, capitol, caribou, carpool, catalog, chariot, choragi, clipart, coalbag, coalpit, coaltar, cohabit, cohibit, copilot, culprit, curtail, galtrap, galtrop, graphic, haircap, haircut, halibut, haricot, libator, locator, obligor, oolitic, optical, orbital, outbrag, outcrop, paralog, parboil, partial, patrial, philtra, phobiac, pigtail, pitohui, polaric, politic, porotic, portico, prootic, ragbolt, robotic, tabooli, tabular, tapioca, tilapia, toolbag, toolbar, toparch, topical, toprail, trophic, uplight, upright, urolith