The highest scoring word in Words With Friends is ASSORTMENT with a total of 14 points.
Synonyms: mixture, variety, array, mixed bag, mix, miscellany, random selection, motley collection, selection, medley, melange, diversity, mishmash, hotchpotch, hodgepodge, ragbag, pot-pourri, jumble, mess, confusion, conglomeration, farrago, patchwork, hash