The word freethinking 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: 25
Highest Scoring Words With Friends™ Play In The Letters freethinking
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Seven Letter Word Alert: (35 words)
eighter, feigner, fighter, freeing, freight, gherkin, heftier, hefting, hinting, igniter, inherit, integer, keening, kerning, kernite, kneeing, knifing, neither, niftier, nightie, nitrene, reefing, reeking, rehinge, reining, renting, rethink, rifting, rinking, therein, thinker, thinner, tiering, tinnier, treeing