* Direct and straightforward: "The politician's avowal of support for the new policy surprised many, as she had previously been a vocal critic."
* Emphasizing a strong declaration: "His avowal of love was heartfelt and sincere, leaving no doubt in her mind about his feelings."
* Focusing on the act of declaring: "Her avowal of guilt shocked the courtroom, as she had maintained her innocence throughout the trial."
* Adding a sense of formality: "The company's avowal of ethical business practices was met with skepticism by investors."
* Adding a touch of complexity: "Despite his public avowal of neutrality, his actions suggested a bias towards one side of the conflict."
Remember, "avowal" implies a strong and deliberate declaration of something, often about beliefs, intentions, or feelings.