The word anglerfish 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: 19
Highest Scoring Words With Friends™ Play In The Letters anglerfish
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Seven Letter Word Alert: (47 words)
aligner, anglers, arshine, english, erasing, fearing, finagle, finales, fingers, flanges, flaring, flasher, fragile, fringes, gainers, garfish, garnish, genials, girnels, gnasher, hangers, healing, hearing, hernial, hernias, inhaler, inhales, largish, lashing, leafing, learing, leasing, lingers, nailers, ragfish, realign, reflags, reflash, regains, rehangs, renails, sealing, searing, shalier, sharing, shingle, slinger