The word contractile 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 contractile
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Seven Letter Word Alert: (59 words)
aconite, aileron, aloetic, article, cacolet, calcine, calcite, caloric, calorie, cattier, central, centric, certain, circlet, citator, citrate, cittern, clarion, clatter, clitter, clotter, coalier, coalite, cocaine, coeliac, conceal, conceit, concert, conical, contact, corneal, cornett, cornice, elation, enactor, erotica, laconic, lactone, latrine, lattice, lection, nattier, nictate, nitrate, oceanic, otarine, ratline, recital, reliant, retinal, retinol, retotal, ricotta, tactile, tantric, tertial, tetanic, toenail, trenail