derring-do (noun)

1. In the epic fantasy novel, the protagonist embarked on various acts of derring-do to save the kingdom.

2. The painting depicted a scene of derring-do, with the brave knight battling against a fearsome dragon.

3. As the main character explored the haunted house, they were faced with terrifying acts of derring-do committed by the vengeful spirits.

4. In the passionate love story, the hero's acts of derring-do were driven by his devotion to his beloved, risking everything to protect her.