The word palpabilities 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: 24
Highest Scoring Words With Friends™ Play In The Letters palpabilities
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Seven Letter Word Alert: (33 words)
ablates, albites, alibies, aplites, appalls, appeals, applets, applies, astilbe, ballast, ballets, baptise, billets, ileitis, illites, labials, labiate, libates, paellas, palates, pallets, palpate, papilla, patella, pilates, platipi, pliable, salable, spatial, stipple, tallies, tilapia, tipples