The word commiserate 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 commiserate
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Seven Letter Word Alert: (59 words)
acerose, aeriest, amerces, ammeter, atomics, atomise, atomism, cerates, coaster, coesite, commits, coterie, creates, cremate, cristae, emetics, emirate, emoters, erotica, erotics, erotise, etaerio, immerse, isomere, maestro, maimers, marmite, marmots, meatier, memetic, memoire, memoirs, mercies, metamer, meteors, metrics, metrise, mismate, moister, mortise, octamer, racemes, raciest, recites, recoats, reemits, remates, remotes, reteams, retimes, roseate, scoriae, seamier, seriate, seriema, smartie, somatic, stammer, steamer