The word counterfeiting 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 counterfeiting
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Seven Letter Word Alert: (92 words)
citrine, cittern, coining, confine, confute, conifer, content, coreign, cornett, corning, coterie, counter, curette, cutting, enforce, enteric, enticer, eugenic, feigner, fencing, fiction, fitting, forcing, foregut, foreign, fortune, freeing, functor, funnier, generic, genetic, genuine, goutier, gunfire, igniter, ignitor, inciter, inferno, integer, intoner, inuring, ironing, netting, neutron, niftier, nitrene, nitrite, nittier, noncute, nonfire, nonfree, nuttier, nutting, oftener, outfire, outgrin, recount, reefing, reicing, reining, renting, reunion, reunite, rifting, rioting, rotting, routine, routing, ruining, rutting, tentier, tenting, tiering, tinnier, tintier, tinting, touring, touting, treeing, trounce, tuftier, tufting, tuition, turfing, turning, tutoree, unction, unerect, unicorn, unifier, uniting, uterine