The word harmonizable 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: 31
Highest Scoring Words With Friends™ Play In The Letters harmonizable
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Seven Letter Word Alert: (31 words)
abalone, aeolian, aileron, airable, airhole, almoner, amiable, arabize, armhole, balmier, banaler, brahmin, bromine, bromize, embroil, hernial, hobnail, inhaler, laminae, laminar, loamier, manhole, manlier, menorah, mineral, moraine, nimbler, rhizoma, rhizome, romaine, zoarial