The word astronomical 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: 20
Highest Scoring Words With Friends™ Play In The Letters astronomical
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Seven Letter Word Alert: (81 words)
actions, aircool, alicant, amritas, animals, arctans, artisan, artsman, atomics, atonias, atonics, cantors, carinal, cartons, cartoon, cations, citrons, clamors, clarion, coalman, coaltar, coastal, coatman, consort, control, coolant, coronal, coronas, cranial, cratons, crimson, laminar, laminas, lariats, locator, lotions, mailcar, maniacs, mantras, marconi, marinas, marital, marlins, maroons, martial, martian, martins, masonic, matrons, microns, mistral, monitor, moonlit, moronic, mortals, motions, narcoma, normals, nostril, oarsman, oilcans, omicron, oration, osmotic, racoons, rations, rosalic, sarcoma, satanic, scatoma, scotoma, scrotal, somatic, stamina, stoical, stromal, tailors, tarmacs, toolman, torsion, tsarina