The word breechcloths 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: 26
Highest Scoring Words With Friends™ Play In The Letters breechcloths
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Seven Letter Word Alert: (40 words)
belcher, belches, blether, boletes, bolster, bolters, borscht, botcher, botches, bothers, brothel, chortle, cloches, clothes, coerces, coheres, colters, creches, creoles, crochet, echoers, elector, etchers, herblet, herbose, heteros, holster, hostler, lechers, lobster, rechose, reclose, retches, roselet, screech, shelter, sherbet, torches, trebles, trochee