The word breathalyzed 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™ Play In The Letters breathalyzed
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Seven Letter Word Alert: (50 words)
ablated, abrayed, aerated, alerted, already, altered, arylate, belated, belayed, belayer, berated, berthed, blather, bleated, bleater, blether, breadth, breathe, breathy, datable, dealate, deathly, debater, delayer, dyeable, earthed, earthly, eatable, eyebath, healder, hearted, herblet, hetaera, hydrate, lathery, layered, leadeth, leather, lyrated, rebaled, rebated, rebathe, redealt, related, relayed, thereby, thready, treadle, trebled, zareeba