The word fingerpost 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: 19
Highest Scoring Words With Friends™ Play In The Letters fingerpost
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Seven Letter Word Alert: (41 words)
egotrip, fingers, finspot, firepot, foister, foreign, forgets, forints, forties, fringes, goiters, goitres, goriest, ignores, norites, orients, petifog, pigeons, pingers, pingoes, pointer, porting, postern, posting, presift, profits, pronest, protein, pterins, regions, repoint, resting, ropiest, snifter, sorting, sponger, sporing, stinger, stonier, storing, triones