The word barleycorns 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: 21
Highest Scoring Words With Friends™ Plays In The Letters barleycorns
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Seven Letter Word Alert: (43 words)
balcony, baloney, barleys, barrels, barrens, baryons, beacons, blarney, boranes, bracers, brayers, cablers, canoers, carbons, carboys, caroler, cloners, cloyers, coalers, coarsen, coarser, corneal, corneas, corners, corrals, crayons, cyanose, escolar, laborer, lancers, larceny, loaners, oracles, orleans, rancors, recoals, reloans, scorner, snarler, soberly, solacer, sorcery, soybean