1. The wife or widow of a marquis; a woman who holds the rank of marquis in her own right.
Usage: British and European nobility title; Feminine form of marquis

Examples

• The marchioness wore a tiara to the royal ball.
• She became a marchioness when she married the marquis.
• The marchioness inherited her title from her father.
• Several marchionesses attended the charity gala.
• The marchioness of that region was known for her philanthropy.