The word vapourisable 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: 24
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (61 words)
aboulia, absolve, abulias, abusive, aerials, airable, airbase, arabise, areolas, arousal, aupairs, aureola, basilar, bipolar, bipoles, boilers, bolivar, bousier, bravoes, burials, labours, leprous, lousier, louvers, louvres, ovaries, overlap, palaver, parable, parasol, parboil, paroles, perusal, plosive, plovers, preboil, prevail, pueblos, reavail, reboils, rubeola, savable, saviour, soapier, soupier, spiraea, spoiler, sporule, subarea, subpial, subrail, surveil, upraise, uprisal, valuers, vapours, variola, various, velaria, velours, verbals