The word ravishingly 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 ravishingly
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Seven Letter Word Alert: (30 words)
airings, aisling, angrily, arising, garnish, girlish, grayish, hailing, halving, hryvnia, lairing, largish, lashing, livings, railing, raising, ravings, sailing, salving, sharing, shaving, shingly, shinily, slaving, slaying, syringa, varnish, varying, vialing, virgins