The word counteraction 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: 22
Highest Scoring Words With Friends™ Play In The Letters counteraction
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Seven Letter Word Alert: (75 words)
account, aconite, ancient, auction, cannier, canonic, cartoon, catenin, cattier, caution, centaur, centric, certain, citator, citrate, cittern, coactor, cocaine, coconut, conceit, concern, concert, connect, connote, contact, contain, content, contort, contour, cornett, cornice, coronet, counter, crouton, curtain, cutrate, ecotour, enactor, entrain, entrant, erotica, intoner, nattier, neutron, nictate, nitrate, noncute, nonriot, notator, nuttier, oceanic, oncotic, oration, otarine, outearn, outrace, outrant, outrate, raccoon, rainout, rattoon, recount, reunion, ricotta, routine, tantric, taunter, tetanic, tornote, trounce, uncrate, unction, unearnt, unicorn, urinate