The word notarising 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: 14
Highest Scoring Words With Friends™ Plays In The Letters notarising
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Seven Letter Word Alert: (30 words)
agonist, airings, anoints, arising, atoning, gastrin, ignitor, ingrain, introns, ironing, nations, nonarts, orating, origins, raining, raising, ranting, ratings, rations, rinsing, rioting, roaning, signora, snaring, snoring, soaring, sorting, staring, stoning, storing