The word spongeflies 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 spongeflies
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Seven Letter Word Alert: (47 words)
egoless, elogies, eloigns, eloping, epilogs, epsilon, feeling, feesing, felines, finesse, finless, fleeing, flenses, fogless, genesis, glioses, gospels, insoles, legions, lesions, lingoes, lioness, losings, olefins, oneself, peeling, pegless, penises, peonies, pieless, pigeons, pingles, pingoes, pinless, pleions, poesies, seeping, selfies, signees, singles, sloping, spiegel, spinels, spinose, spleens, splines, sponges