1. a young woman making her formal entrance into society
2. a person making their first appearance in a particular activity or role

Examples

• The debutant wore an elegant white gown to the cotillion.
• She was nervous about her debut as a debutant at the charity ball.
• The young debutant impressed everyone with her poise and grace.
• As a political debutant, he had much to learn about campaigning.
• The theater welcomed the debutant actor to the cast.
• Several debutants were presented to society at the formal event.