The word reunification 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
Seven Letter Word Alert: (60 words)
aconite, ancient, anionic, auction, cannier, cantref, catenin, caution, centaur, certain, citrine, confine, confute, conifer, contain, counter, curtain, enactor, entrain, erotica, faction, fainter, fancier, fiction, finance, fireant, fortune, frantic, functor, funnier, furcate, furnace, furoate, inciter, inertia, infarct, inferno, intoner, neutron, niftier, noncute, nonfact, nonfire, otarine, outearn, outface, outfire, outrace, rainout, recount, reunion, routine, tinnier, trounce, uncrate, unction, unearnt, unicorn, unifier, urinate