The word chimneystacks 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: 31
Highest Scoring Words With Friends™ Play In The Letters chimneystacks
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Seven Letter Word Alert: (97 words)
accents, accites, achiest, aitches, amenity, amnesic, amnesty, anthems, anytime, ascents, ascetic, ascites, ashiest, atheism, cachets, cakiest, caseins, caskets, catches, catkins, chaises, chances, chantey, chasten, chemics, chemist, chicken, chimney, chymase, chymics, chymist, cinches, cinemas, cyanise, cyanite, cystine, ecstasy, ecthyma, emacity, encysts, ethnics, hackney, haemins, hankies, hastens, hickeys, hymnist, icemans, icemass, incests, inmates, inseams, insects, intakes, kinases, kitchen, kyanise, kyanite, machine, matches, messiah, mickeys, miscast, miskeys, misseat, mistake, mystics, nematic, nickase, sachets, scathes, schemas, schtick, schtiks, scythes, scythic, seasick, secants, seitans, sestina, shitake, shticks, sickens, sickest, skaiths, sketchy, snakish, snatchy, snitchy, stamens, stances, stenchy, stymies, theisms, thicken, thymine, yachtie