The word astronautic 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: 16
Highest Scoring Words With Friends™ Play In The Letters astronautic
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Seven Letter Word Alert: (45 words)
actants, actions, arctans, artisan, atonias, atonics, attains, auction, autocar, cantors, cartons, cations, caution, citator, citrons, cratons, cuatros, curtain, incrust, intorts, intrust, nautica, nitrous, octants, outcast, outrant, rainout, rations, rattons, ricotta, satanic, saurian, station, straint, suction, tantric, tartans, toucans, tourist, transit, tricots, truants, tsarina, uncarts, unstoic