The word swashbuckling 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: 33
Highest Scoring Words With Friends™ Play In The Letters swashbuckling
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Seven Letter Word Alert: (51 words)
abusing, anguish, backing, balking, bashing, basking, bawling, bucinas, bucking, bulking, bushing, busking, buskins, bussing, cabling, cashing, casings, causing, chasing, chinwag, cingula, clawing, cussing, gawkish, glucans, hacking, hauling, hawking, hulking, husking, lacings, lacking, lashing, lucking, sacking, sashing, saucing, sawbuck, scaling, shaking, sickbag, signals, snakish, sucking, sulking, walking, walkins, washing, wauking, wauling, whaling