The word pneumonitis 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 pneumonitis
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Seven Letter Word Alert: (35 words)
impetus, impious, inosine, inosite, intones, mention, minions, minuets, minutes, mistune, moisten, mopiest, mountie, munites, nonmute, nonsuit, outspin, pension, pietism, pimento, pinenut, pinions, piteous, pontine, postmen, poutine, puniest, spinnet, spinout, tenpins, tension, tiepins, unities, unspent, uptimes