The word aspherical 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 aspherical
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Seven Letter Word Alert: (40 words)
achiral, aerials, aphasic, archeal, caliper, caliphs, carpals, carpels, cashier, chapels, ciphers, clasher, clasper, eclairs, eparchs, haircap, harelip, harpies, icespar, larches, palaces, parcels, parches, pariahs, phrasal, placers, plasher, reclasp, reclips, replica, scalier, scalper, shalier, sharpie, spacial, spacier, special, spheric, spiraea, splicer