The word ecoterrorism 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: 18
Highest Scoring Words With Friends™ Plays In The Letters ecoterrorism
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Seven Letter Word Alert: (53 words)
coesite, cooties, coterie, crosier, emetics, emoters, erector, erotics, erotise, isomere, mercers, mercies, merrier, meteors, metrics, metrise, mirrors, miterer, moister, mortise, osmotic, reciter, recites, rectors, reemits, remorse, remoter, remotes, reroots, rescore, restore, retimer, retimes, retirer, retires, retries, retrims, rioters, roister, roomers, roomier, rooster, rooters, scooter, sootier, sorrier, stirrer, terrier, terroir, terrors, tremors, trimers, trireme