letters of marque (noun)

1. In the historical novel, the protagonist was granted letters of marque to capture enemy ships during the war.

2. The pirate crew in the anime series possessed letters of marque which allowed them to legally raid enemy vessels.

3. The movie depicted a thrilling scene where the heroes used their letters of marque to confiscate enemy cargo.

4. The painting displayed a captivating image of a privateer brandishing their letters of marque before embarking on a naval expedition.