The word lecherousness 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™ Play In The Letters lecherousness
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Seven Letter Word Alert: (67 words)
censers, censors, censure, cheeses, chouser, chouses, cloners, closers, closure, coheres, consuls, coulees, counsel, courses, creoles, cresols, cresses, crosses, crushes, cussers, echelon, echoers, enclose, encores, ensouls, ensures, essence, hueless, lechers, leecher, leeches, lessees, lessens, lessons, lessors, luncher, lunches, lurches, necrose, rechose, reclone, reclose, recluse, recuses, reheels, rehones, rehouse, rescues, reshoes, resoles, schorls, screens, secerns, secures, sensors, sloshes, slusher, slushes, sonless, sources, sucrose, sunless, unclose, uncross, unhorse, unreels, useless