The word infanticides 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: 21
Highest Scoring Words With Friends™ Play In The Letters infanticides
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Seven Letter Word Alert: (44 words)
ancient, asinine, candies, canines, catenin, dacites, decants, defiant, deficit, deistic, dentins, descant, destain, detains, diciest, dietics, discant, enfants, fadeins, fainted, fancied, fancies, fiances, finance, incants, incased, incised, incited, incites, indents, indians, indices, indicts, indites, infants, infects, instead, intends, nascent, niacins, sainted, scanned, stained, stannic