expression, noun which may take the genitive case particle 'no'
long-awaited; much-awaited; at last
Used when something is finally done after thorough preparation or a long wait. Often modifies a verb or noun to emphasize that the action or event is the culmination of patience.
満を持して新製品が発表された。
The long-awaited new product was finally announced.
彼は満を持してプロジェクトを始動させた。
He finally launched the project after thorough preparation.