The word chrysalises 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: 19
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (41 words)
airless, ashless, carless, cashers, cashier, chaises, charily, chasers, chassis, chisels, clasher, clashes, classes, clayier, clayish, clerisy, crashes, crassly, eclairs, hassles, hissers, larches, lashers, lassies, rayless, reclass, resails, sacless, sailers, sassier, sassily, scalers, scalier, scarily, scleras, serials, shalier, slasher, slashes, slayers, slicers