The word discontinuation 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: 23
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (46 words)
actions, anionic, anodont, anoints, astound, atonics, auction, cannons, cantons, cations, caution, conduit, conidia, contain, cottons, diction, discant, distant, iconist, idiotic, incants, indians, indicts, inducts, instant, intuits, isodont, nanodot, nations, niacins, nicosia, nonacid, nonsuit, notions, octants, outcast, stannic, station, suction, tannins, titanic, toucans, tuition, unction, unstain, unstoic