The word handsbreadths 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 handsbreadths
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Seven Letter Word Alert: (57 words)
abasers, abashed, abashes, abaters, abraded, abrades, abrased, abrases, abreast, absents, address, anthers, baddest, badness, banters, bartend, bashers, basters, bathers, branded, brassed, breadth, breasts, breaths, danders, dashers, dastard, dearths, desands, dharnas, handers, handset, hardens, hardest, hardhat, harness, hastens, hatband, hatreds, hearths, rashest, rebaths, resands, saddens, saddest, sandbar, sanders, searats, seastar, shaders, sheaths, stander, stashed, strands, threads, trashed, trashes