The word pneumonectomy 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: 30
Highest Scoring Words With Friends™ Plays In The Letters pneumonectomy
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Seven Letter Word Alert: (27 words)
comment, commune, commute, compete, compote, compute, connote, economy, ecotype, enocyte, memento, metonym, monoecy, mononym, myotome, neocyte, neotype, noncute, nonmute, oeconym, omentum, outcome, pentyne, ponymen, potency, toponym, umpteen