The word candyflosses 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 candyflosses
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Seven Letter Word Alert: (35 words)
acnodes, aldoses, ascends, candles, cassons, classed, classes, condyle, confess, coyness, cyanose, dayless, deacons, declass, enfolds, falcons, flossed, flosses, fondles, lassoed, lassoes, lessons, oldness, sacless, sadness, sandfly, seasons, seconds, selsyns, slyness, sodless, solaced, solaces, sonless, synodal