The word counterplan 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: 21
Highest Scoring Words With Friends™ Play In The Letters counterplan
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Seven Letter Word Alert: (54 words)
acouple, annulet, caltrop, capture, centaur, central, cleanup, cloture, corneal, coulter, counter, coupler, couplet, enactor, lactone, lantern, nepotal, neutral, neutron, noncute, nonlate, nonleap, nonreal, nuclear, nucleon, octuple, operant, opulent, outearn, outleap, outpace, outplan, outrace, planner, planter, plouter, polecat, poulter, pouncer, precoat, pronate, protean, recount, replant, trounce, truncal, trunnel, unalert, unalter, unclean, unclear, uncrate, unearnt, unlearn