The word ethanamides 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™ Play In The Letters ethanamides
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Seven Letter Word Alert: (43 words)
amentia, amnesia, animate, aniseed, anthems, ashamed, atheise, atheism, demates, demeans, dements, destain, destine, detains, emanate, ethanes, haemins, handset, headman, headmen, headset, heisted, inmates, instead, maidens, manatee, mandate, matinee, meanest, meanies, medians, mediate, methane, mindset, misdate, sainted, seamaid, sideman, stained, stamina, standee, steamed, tandems