The word monologuising 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 monologuising
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Seven Letter Word Alert: (34 words)
gigolos, gnomons, googols, goosing, gosling, insulin, inulins, lignins, limning, linings, lionism, longing, looming, loosing, lousing, lunging, minions, mongols, monolog, monsoon, mooning, moulins, mousing, noosing, ominous, ongoing, oolongs, signing, singing, sliming, smiling, soiling, soloing, unsling