The word craftiness 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: 17
Highest Scoring Words With Friends™ Play In The Letters craftiness
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Seven Letter Word Alert: (59 words)
actress, ancress, antsier, arcsine, arsenic, ascents, ascites, canters, cantref, carnies, caseins, casters, certain, cistern, cretins, cristae, fainter, fairest, fancier, fancies, fascist, fastens, fatness, fiances, fiestas, fireant, fitness, frantic, incests, infarct, infects, infests, insects, inserts, instars, nastier, nectars, raciest, racists, recants, recasts, rescans, resifts, restain, retains, retinas, satires, scanter, secants, seitans, sestina, sifters, sinters, snifter, stainer, stances, strains, strifes, trances