The word fingerspells 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: 23
Highest Scoring Words With Friends™ Play In The Letters fingerspells
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Seven Letter Word Alert: (73 words)
ellipse, feeling, feesing, feigner, felines, fellers, felling, fillers, finesse, fingers, finless, fleeing, flenser, flenses, freeing, fringes, genesis, girnels, greisen, grilles, illness, ingress, leering, legless, lingers, lipless, lispers, peeling, peering, pegless, penises, pieless, pilfers, pingers, pingler, pingles, pinless, prefile, prefill, presell, reefing, reeling, refiles, refills, refines, reflies, reflips, reliefs, relines, repiles, repines, replies, resells, resigns, respell, respins, seeping, selfies, sellers, selling, signees, signers, singers, singles, slinger, snipers, speller, spiegel, spiller, spinels, spleens, splines, springs