The word reconfirmed 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: 22
Highest Scoring Words With Friends™ Plays In The Letters reconfirmed
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Seven Letter Word Alert: (31 words)
codeine, comfier, confide, confirm, conifer, cornier, decrier, definer, deforce, deiform, demonic, dernier, dormice, encoder, encored, endemic, enforce, fermion, ferried, fiercer, firemen, foremen, freedom, incomer, miocene, nerdier, refined, refiner, refired, refried, remined